Drawing of Biosatellite 2 (Cross section)
NASA
<a rel="nofollow" class="external free" href="http://lis.arc.nasa.gov/lis/Programs/US_Biosat/Biosatellite_1_2/Biosat_1_2.html">http://lis.arc.nasa.gov/lis/Programs/US_Biosat/Biosatellite_1_2/Biosat_1_2.html</a>