CHROMOSOMES OF MOSQUITO 



563 



EXPLANATION OF PLATES 



The drawings were made with a camera lucida, using a compensating ocular 

 20X and a Zeiss homogeneous immersion apochromatic 2.0 mm. objective. They 

 were drawn at a magnification of 3000 from the specimens and enlarged to 6000. 

 The drawings have been reduced one-third in reproduction, giving a final magnifi- 

 cation of 4000 diameters. 



The drawings are listed below to show which are taken from the same indi- 

 vidual, the sex and stage of development of the individual, and the fixation. 



