003140000a22001210004500060000800000082001900008100002000027245002700047260003900074260000900113300000800122650006200130  a100  a574.873 22 DAR  aDarlington, C D  aHandling of Chromosoms  aLondon, George Allen and Unwin Ltd  c1942  a263  aChromosome/ Equipments-Microscope/Microscope- Equipments/