diff --git a/gfx/Fig130b - Spermien des Menschen.svg b/gfx/Fig130b - Spermien des Menschen.svg
new file mode 100644
index 0000000..cad2c17
--- /dev/null
+++ b/gfx/Fig130b - Spermien des Menschen.svg	
@@ -0,0 +1,172 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:xlink="http://www.w3.org/1999/xlink"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   width="83.257347mm"
+   height="239.66504mm"
+   viewBox="0 0 295.00635 849.20683"
+   id="svg2"
+   version="1.1"
+   inkscape:version="0.91 r"
+   sodipodi:docname="Fig130b - Spermien des Menschen.svg">
+  <defs
+     id="defs4">
+    <pattern
+       inkscape:stockid="Wavy"
+       id="Wavy"
+       height="5.1805778"
+       width="30.066020"
+       patternUnits="userSpaceOnUse"
+       inkscape:collect="always"
+       inkscape:isstock="true">
+      <path
+         id="path5530"
+         d="M 7.597,0.061 C 5.079,-0.187 2.656,0.302 -0.01,1.788 L -0.01,3.061 C 2.773,1.431 5.173,1.052 7.472,1.280 C 9.770,1.508 11.969,2.361 14.253,3.218 C 18.820,4.931 23.804,6.676 30.066,3.061 L 30.062,1.788 C 23.622,5.497 19.246,3.770 14.691,2.061 C 12.413,1.207 10.115,0.311 7.597,0.061 z "
+         style="fill:black;stroke:none;" />
+    </pattern>
+    <pattern
+       patternTransform="translate(3.6730967e-8,4.7247098e-6)"
+       id="pattern5742"
+       xlink:href="#Wavy-2"
+       inkscape:collect="always" />
+    <pattern
+       patternTransform="translate(3.6730967e-8,4.7247098e-6)"
+       id="pattern5740"
+       xlink:href="#Wavy-2"
+       inkscape:collect="always" />
+    <pattern
+       inkscape:stockid="Wavy"
+       id="Wavy-2"
+       height="5.1805778"
+       width="30.066020"
+       patternUnits="userSpaceOnUse"
+       inkscape:collect="always"
+       inkscape:isstock="true">
+      <path
+         id="path5530-6"
+         d="M 7.597,0.061 C 5.079,-0.187 2.656,0.302 -0.01,1.788 L -0.01,3.061 C 2.773,1.431 5.173,1.052 7.472,1.280 C 9.770,1.508 11.969,2.361 14.253,3.218 C 18.820,4.931 23.804,6.676 30.066,3.061 L 30.062,1.788 C 23.622,5.497 19.246,3.770 14.691,2.061 C 12.413,1.207 10.115,0.311 7.597,0.061 z "
+         style="fill:black;stroke:none;" />
+    </pattern>
+  </defs>
+  <sodipodi:namedview
+     id="base"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
+     inkscape:pageopacity="1"
+     inkscape:pageshadow="2"
+     inkscape:zoom="0.98994949"
+     inkscape:cx="-92.071072"
+     inkscape:cy="407.76037"
+     inkscape:document-units="px"
+     inkscape:current-layer="layer1"
+     showgrid="false"
+     fit-margin-top="1"
+     fit-margin-left="1"
+     fit-margin-right="1"
+     fit-margin-bottom="1"
+     inkscape:window-width="1920"
+     inkscape:window-height="1176"
+     inkscape:window-x="0"
+     inkscape:window-y="24"
+     inkscape:window-maximized="1" />
+  <metadata
+     id="metadata7">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     inkscape:label="Ebene 1"
+     inkscape:groupmode="layer"
+     id="layer1"
+     style="display:inline;opacity:1"
+     transform="translate(-277.2252,-79.422041)">
+    <path
+       style="fill:none;fill-rule:evenodd;stroke:#000000;stroke-width:2;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
+       d="m 299.83041,95.096794 c -0.23856,3.831752 0.27816,7.834836 -0.67097,11.554836 -2.08776,8.18269 -3.06977,12.14126 -7.77048,19.90963 -2.50955,4.14727 -5.33185,9.05494 -6.07143,13.84563 -0.87862,5.69134 -2.59034,12.13262 0.24882,17.14286 1.71418,3.02499 5.45103,6.12628 8.71936,7.31245 3.47088,1.25969 7.66559,1.78335 11.07143,0.35715 3.88543,-1.62702 6.66629,-5.52883 8.57143,-9.28572 2.52371,-4.9767 3.55003,-10.85866 3.21429,-16.42857 -0.27862,-4.62224 -3.34002,-7.54483 -4.28572,-12.07787 -1.24589,-5.97196 -0.89285,-11.61353 -0.64929,-17.7092 0.18832,-4.71329 1.7533,-10.869149 1.36358,-15.570073 -0.29244,-3.527439 -0.31334,-7.625434 -3.31889,-9.494924 -2.64572,-1.645668 -6.45503,-0.118178 -8.5281,2.207851 -1.74258,1.955207 -1.73129,5.621963 -1.89403,8.23595 z"
+       id="path4160"
+       inkscape:connector-curvature="0"
+       sodipodi:nodetypes="sssssssssssssss" />
+    <path
+       style="opacity:1;fill:url(#Wavy);fill-opacity:1;fill-rule:evenodd;stroke:#000000;stroke-width:2;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
+       d="m 288.4375,132.63006 c 2.16727,2.85576 3.88721,4.74411 6.42857,5.71429 4.32486,1.65105 8.88351,1.73714 13.48215,1.20535 5.1302,-0.59325 5.22561,-1.13992 8.25892,-2.09822 0.34985,3.85842 -0.35314,5.80977 -0.80357,8.30358 -0.64733,3.58528 -1.48388,7.24034 -3.21428,10.44643 -1.59633,2.9577 -3.43029,6.24912 -6.42857,7.76786 -3.19143,1.61658 -7.27283,1.60219 -10.71429,0.625 -2.6926,-0.76456 -5.17705,-2.59621 -6.875,-4.82143 -1.7646,-2.31257 -2.44799,-5.3484 -2.94643,-8.21429 -0.48447,-2.78556 -0.26786,-8.03571 0,-8.48214 0.26786,-0.44643 0.98978,-7.00687 2.8125,-10.44643 z"
+       id="path4162"
+       inkscape:connector-curvature="0"
+       sodipodi:nodetypes="csscsssssssc" />
+    <path
+       style="fill:none;fill-rule:evenodd;stroke:#000000;stroke-width:2;stroke-linecap:round;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
+       d="m 334.36049,924.07283 c 1.01016,-2.0203 2.97278,-14.44382 2.52538,-21.71828 -0.78709,-12.79764 -4.24778,-25.50388 -9.09137,-37.37564 -5.10463,-12.51156 -15.61123,-22.33556 -20.70813,-34.85027 -4.05079,-9.94613 -6.13456,-20.67253 -7.57614,-31.31472 -2.12541,-15.69048 -2.76546,-31.69283 -1.51523,-47.47717 1.0559,-13.33085 5.64618,-26.16335 7.57615,-39.39595 1.46515,-10.04562 2.84811,-20.15431 3.03045,-30.30458 0.14242,-7.92768 -1.01015,-21.71828 -1.51523,-23.73858 -0.50507,-2.02031 -10.70155,-20.83028 -14.64721,-31.81981 -4.23641,-11.79932 -8.07509,-23.92135 -9.59645,-36.36549 -1.38943,-11.36502 -1.63724,-23.09776 0.50508,-34.34519 3.73857,-19.62798 14.55035,-37.22624 21.2132,-56.06346 5.02425,-14.20456 11.36471,-28.12276 14.14214,-42.93149 2.36194,-12.59339 2.52743,-25.58286 2.0203,-38.38579 -0.55791,-14.08492 -3.31021,-28.00539 -5.55584,-41.92133 -1.72012,-10.6594 -3.75957,-21.27062 -6.06091,-31.81981 -2.40209,-11.01101 -8.08122,-32.82996 -8.08122,-32.82996"
+       id="path4164"
+       inkscape:connector-curvature="0"
+       sodipodi:nodetypes="cssssssssssssssssc" />
+    <path
+       style="fill:none;fill-rule:evenodd;stroke:#000000;stroke-width:2;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
+       d="m 294.19161,164.604 c 0.0759,5.776 -2.4098,16.00556 -3.64649,24.07778 -0.82072,5.35711 -0.93344,11.05998 -1.76777,16.41498 -0.9124,5.85608 -2.2778,7.63204 -3.03045,13.51079 -0.58883,4.59921 -2.55428,12.0695 -0.63134,16.28871 0.39804,0.87336 1.35284,1.49427 2.27284,1.76776 0.97163,0.28884 2.14921,0.24836 3.03046,-0.25253 1.88866,-1.07347 3.02287,-3.27012 3.78807,-5.30331 1.48994,-3.95887 0.78988,-8.42345 1.26269,-12.6269 0.68275,-6.06981 1.8933,-12.08647 2.27284,-18.18275 0.25107,-4.0328 0.57653,-9.67897 1.38896,-13.63706 0.90231,-4.39599 3.63206,-10.44935 4.16688,-14.905 0.16539,-1.37786 0.81489,-2.86838 0.93247,-5.97644 -0.87398,0.34719 -8.70123,-0.66493 -10.03916,-1.17603 z"
+       id="path4166"
+       inkscape:connector-curvature="0"
+       sodipodi:nodetypes="cssssssssssscc" />
+    <path
+       style="fill:url(#Wavy);fill-opacity:1;fill-rule:evenodd;stroke:#000000;stroke-width:2;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
+       d="m 292.94161,177.28257 c -0.37053,3.81172 -1.1598,3.32699 -2.39649,11.39921 -0.82072,5.35711 -0.93344,11.05998 -1.76777,16.41498 -0.9124,5.85608 -2.2778,7.63204 -3.03045,13.51079 -0.58883,4.59921 -2.55428,12.0695 -0.63134,16.28871 0.39804,0.87336 1.35284,1.49427 2.27284,1.76776 0.97163,0.28884 2.14921,0.24836 3.03046,-0.25253 1.88866,-1.07347 3.02287,-3.27012 3.78807,-5.30331 1.48994,-3.95887 0.78988,-8.42345 1.26269,-12.6269 0.68275,-6.06981 1.8933,-12.08647 2.27284,-18.18275 0.25107,-4.0328 0.57653,-9.67897 1.38896,-13.63706 0.90231,-4.39599 0.91678,-4.2739 2.47045,-8.56571 1.39505,-0.86597 -8.79893,-3.55317 -8.66026,-0.81319 z"
+       id="path4166-1"
+       inkscape:connector-curvature="0"
+       sodipodi:nodetypes="csssssssssscc" />
+    <path
+       style="fill:#000000;fill-opacity:1;fill-rule:evenodd;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
+       d="m 286.51786,236.02291 c -1.2,0.87632 0.26883,4.42548 0.53571,9.19644 0.42972,7.682 0.75273,15.3067 2.23214,22.85714 1.21584,6.20528 3.25347,12.22412 4.64286,18.39286 1.61338,7.16325 3.92857,20.17857 4.28572,21.60714 0.35714,1.42857 3.43146,17.11732 5.71428,25.53571 2.40424,8.86616 6.1876,17.33226 8.39286,26.25 3.43929,13.90801 4.95801,30.74242 7.5,42.32143 -0.9367,-14.8217 -3.21406,-26.78578 -3.57143,-28.03571 -0.35656,-1.24712 -2.49425,-15.46 -4.64286,-25.89286 -1.02769,-4.99006 -7.58946,-26.60773 -7.76785,-27.85714 -0.17848,-1.25001 -4.73215,-26.96429 -4.73215,-28.57143 0,-1.60714 -3.21428,-16.42857 -3.39285,-17.32143 -0.17858,-0.89286 -1.36534,-8.46356 -2.14286,-12.67857 -0.6607,-3.58173 -1.82765,-7.0858 -2.14286,-10.71429 -0.42769,-4.92337 -1.02321,-11.3917 -0.35715,-15.71429 -1.01521,2.46593 -2.56454,3.86202 -4.55356,0.625 z"
+       id="path5666"
+       inkscape:connector-curvature="0"
+       sodipodi:nodetypes="csssssscssssssscc" />
+    <path
+       style="fill:none;fill-rule:evenodd;stroke:#000000;stroke-width:2;stroke-linecap:round;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
+       d="m 553.92857,789.50506 c 0,0 4.70717,-4.44146 6.42857,-7.14286 2.78054,-4.3635 4.89847,-9.24629 6.07143,-14.28571 1.45958,-6.27086 1.38746,-12.85499 1.07143,-19.28571 -0.41983,-8.54291 -1.63308,-17.11771 -3.92857,-25.35715 -1.93421,-6.94265 -4.76411,-13.67245 -8.21429,-20 -4.58484,-8.40849 -10.80841,-15.81662 -16.42857,-23.57143 -6.73453,-9.29245 -14.41964,-17.90411 -20.71428,-27.5 -4.50312,-6.8648 -8.9799,-13.85234 -12.14286,-21.42857 -4.38476,-10.50281 -7.34542,-21.6424 -9.28571,-32.85714 -2.11547,-12.22731 -2.93918,-24.74167 -2.5,-37.14286 0.45941,-12.97243 2.88663,-25.82814 5.35714,-38.57143 2.24208,-11.56497 5.29383,-22.97055 8.57143,-34.28571 3.69741,-12.76443 8.4917,-25.1869 12.5,-37.85714 2.85119,-9.01262 6.01572,-17.94922 8.21428,-27.14286 1.74348,-7.29065 3.18836,-14.68327 3.92857,-22.14286 0.52912,-5.33228 0.35715,-16.07143 0.35715,-16.07143"
+       id="path5684"
+       inkscape:connector-curvature="0"
+       sodipodi:nodetypes="csssssssssssssssc" />
+    <path
+       style="fill:none;fill-rule:evenodd;stroke:#000000;stroke-width:2;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
+       d="m 449.01281,102.81881 c -1.47463,0.42132 -3.80645,6.28651 -5.3033,9.59645 -1.77816,3.93199 -3.67163,7.8959 -4.54569,12.12183 -1.04131,5.03459 -1.17347,10.28053 -0.75761,15.40483 0.48746,6.00658 0.90818,12.38401 3.78807,17.67767 2.10497,3.86924 5.31202,7.57028 9.34391,9.34391 3.54781,1.56068 7.80941,1.23088 11.61675,0.50507 4.25674,-0.81148 8.46636,-2.62032 11.86929,-5.3033 2.16839,-1.70963 4.13831,-3.95982 5.05077,-6.56599 1.55798,-4.44994 0.83378,-9.4633 0.25254,-14.14213 -0.75272,-6.05919 -2.12595,-12.18775 -4.79823,-17.67767 -2.89582,-5.94917 -6.69037,-11.792 -11.86929,-15.90991 -2.95034,-2.3459 -6.71671,-3.55701 -10.35406,-4.54568 -1.39047,-0.37795 -4.29315,-0.50508 -4.29315,-0.50508 z"
+       id="path5686"
+       inkscape:connector-curvature="0"
+       sodipodi:nodetypes="cssssssssssssc" />
+    <path
+       style="display:inline;opacity:1;fill:url(#pattern5740);fill-opacity:1;fill-rule:evenodd;stroke:#000000;stroke-width:2;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
+       d="m 438.40621,139.94192 c 0.48746,6.00658 0.90818,12.38401 3.78807,17.67767 2.10497,3.86924 5.31203,7.57028 9.34392,9.34391 3.54781,1.56068 7.80941,1.23088 11.61675,0.50507 4.25674,-0.81148 8.46636,-2.62032 11.86929,-5.3033 2.16839,-1.70963 4.13831,-3.95982 5.05077,-6.56599 1.55798,-4.44994 0.83378,-9.4633 0.25254,-14.14213 -0.18212,-2.52987 -1.25576,-7.88936 -1.80309,-9.46336 -0.79123,2.52084 -22.27943,18.52817 -40.11825,7.94813 z"
+       id="path5686-6"
+       inkscape:connector-curvature="0"
+       sodipodi:nodetypes="csssssccc" />
+    <path
+       style="display:inline;fill:none;fill-rule:evenodd;stroke:#000000;stroke-width:2;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
+       d="m 461.89226,168.09992 c 0,0 3.66954,10.75848 5.42957,16.16244 2.55587,7.84751 5.03657,15.71981 7.44988,23.61232 2.29756,7.51395 3.82564,15.28637 6.69226,22.60216 1.49021,3.80311 1.76441,9.18236 5.42957,10.98541 1.34803,0.66315 4.04267,0.57041 4.41942,-0.88389 1.21308,-4.68264 -1.03227,-13.59191 -2.14658,-20.32932 -1.20954,-7.31322 -5.3033,-20.70812 -5.80838,-21.46574 -0.50507,-0.75761 -5.05076,-16.41498 -5.3033,-17.17259 -0.25254,-0.75762 -5.55584,-18.05648 -5.55584,-18.05648 -2.46913,1.38977 -4.26352,2.70016 -10.6066,4.54569 z"
+       id="path5703"
+       inkscape:connector-curvature="0"
+       sodipodi:nodetypes="csssssssscc" />
+    <path
+       style="display:inline;fill:url(#pattern5742);fill-opacity:1;fill-rule:evenodd;stroke:#000000;stroke-width:2;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
+       d="m 466.02719,180.11057 c 2.55587,7.84751 6.33121,19.8716 8.74452,27.76411 2.29756,7.51395 3.82564,15.28637 6.69226,22.60216 1.49021,3.80311 1.76441,9.18236 5.42957,10.98541 1.34803,0.66315 4.04267,0.57041 4.41942,-0.88389 1.21308,-4.68264 -1.03227,-13.59191 -2.14658,-20.32932 -1.20954,-7.31322 -5.3033,-20.70812 -5.80838,-21.46574 -0.50507,-0.75761 -6.56862,-20.47748 -6.82116,-21.23509 -2.86531,0.76984 -4.6514,2.95369 -10.50965,2.56236 z"
+       id="path5703-8"
+       inkscape:connector-curvature="0"
+       sodipodi:nodetypes="csssssscc" />
+    <path
+       style="display:inline;fill:#000000;fill-opacity:1;fill-rule:evenodd;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
+       d="m 486.1256,240.79838 c 0,0 3.08672,8.41521 5.12441,12.99239 3.36994,7.56977 6.96161,15.04254 10.17857,22.67858 4.34717,10.3188 8.53287,20.71328 12.32143,31.25 1.82152,5.06601 3.34155,10.23542 5,15.35714 2.27318,7.02017 4.85231,13.95019 6.78572,21.07143 2.30061,8.47376 4.49407,17.01896 5.71428,25.71428 0.68781,4.90141 0.76732,9.87359 0.89286,14.82143 0.16005,6.30777 0.35908,12.64171 -0.17857,18.92857 -0.63204,7.39061 -3.57143,21.96429 -3.57143,21.96429 0,0 4.52891,-14.26736 5.89286,-21.60714 1.39917,-7.52934 2.59436,-15.20377 2.32142,-22.85715 -0.28425,-7.97046 -2.46543,-15.7667 -4.10714,-23.57143 -2.09505,-9.95991 -4.46259,-19.87473 -7.32143,-29.64285 -2.8604,-9.77346 -6.20635,-19.40839 -9.82143,-28.92857 -3.04934,-8.03033 -6.62796,-15.84974 -10,-23.75 -3.58983,-8.41053 -7.58205,-16.65435 -10.89285,-25.17858 -1.25401,-3.22867 -3.01405,-9.56888 -3.01405,-9.56888 -1.47379,1.71465 -3.35023,1.28184 -5.32465,0.32649 z"
+       id="path5720"
+       inkscape:connector-curvature="0"
+       sodipodi:nodetypes="csssssssscssssssscc" />
+  </g>
+</svg>