1402 



Journal of Applied Microscopy 



Fig. 4. — Early telophase of mitosis in Ascaris megalocephala var. bivalens; 



polar bodies at i ; egg-cell wall at 2. Centrosome divided 



just below polar bodies, x 1500. 



apparatus; microscope stand, lenses, camera, and illuminating appliances, dedi- 

 cated to this one work ; mounted to stay, on tables adapted to the purpose, 

 resting on a floor that cannot be jarred, with a fully equipped dark room imme- 

 diately at hand. The essentials of such an apparatus will be fully described in a 

 succeeding paper. 



Fig. 5. — Mitotic figure from pollen mother-cell of Lillium candidum. 

 Slide by Prof. David M. Mottier. x 1 500. 



