76 Davis,— The Fertilization of Batrachosp er mum. 
Batrachospermam Boryanum , Sirdt. 
All figures drawn from specimens fixed in absolute alcohol, glycerine preparations, 
and stained with Mayer’s acid haemalum ; x 2400 diameters. 
Fig. 33. A very short type of trichogyne, apparently the surge of the protoplasm 
during the process of fusion was into the antherozoid. 
Fig. 34. Nucleus of antherozoid near the point of fusion. 
Fig. 35. An elongated type of trichogyne with nucleus near the tip ; illustrating 
fragmentation of nucleus of the antherozoid. 
Fig. 36. Fragmentation of nucleus of the antherozoid. 
Fig. 37. Nuclear fragmentation in both antherozoid and trichogyne. 
Fig. 38. Two large fragments of nuclei at the base of the trichogyne ; nucleus 
of antherozoid probably very much divided and scattered in the cytoplasm. 
