30 CALIFORNIA ACADEMY OF SCIENCES. 



Fig. Sb. The nucleus and nucleolus of the same drawn on a larger scale 

 no. nucleolus in a state of disintegration diffusing nucleolar mat- 

 ter. 

 n. m. uiicleolar matter. 

 no. intranucleolar bodies. 



nd. nodes or forming micronuclei, by contraction of the nuclear 

 filaments, or by accumulation of the caryo^jlasm of two 

 different kinds. 

 Fig. 9a. Another Spermatobium in which the caryoplasm has been partly, 

 but yet irregularly distributed. 

 n. n. new larger m;cleus with distinct ni;cleolus. 

 n. d. new nucleus in a state of mitosis. 

 Fig. 9b. A part of the former drawn on a larger scale. 

 n. remains of macronucleus. 

 n. d. macronuclear node division. 



nc. macronucleus around which the cytospheres are grouping them- 

 selves. Smaller nodes are seen scattered about some of 

 which are yet connected by caryosomic filaments. 

 Fig. 9c. A smaller specimen with diffusing nucleus around the vacuoles. 

 Fig. 9d. Spermatobium Freundi with large budding nucleus and large 



nucleolus. Vacuoles and cytospheres not drawn. 

 Fig. 9e. Part of a resting niicleus with two extra nuclear bodies of un- 

 known nature, possiblj^ nucleolar ejected matter. 

 cyt. cytoplasm. 

 noh. nucleolus. 

 en. ejected nucleoli. 

 Fig. 10. Spermatobium eclipidrili, transforming into an encysted sporogo- 

 nium. 

 n, remains of macronucleus. 

 n. no. nucleoli. 

 sp. hi. sporoblasts. 



r. k. " restkorper, " consisting of i;nused cytoplasm. 

 n. n. micronuclei. 

 Fig. 10b. One of the new nucleoli and a cytosphere drawn on a larger 

 scale. 

 no. nucleolus with intranucleolar transparent globules. 

 cys. cytospheres. 



These intranucleolar globules are entirely distinct from the 

 intra aiicleolar bodies elsewhere referred to. 

 Fig. 11. A sporogonium of Spermatobium Freundi. The micronuclei are 



resting. 

 Fig. 12. A sporoblast of the former drawn on a larger scale. 

 n. micronucleus. 

 cyt. cyototheca. 

 cys. cytospheres. 



