Relation to the Nucleolus in Galtonia candicans, Decsne . 501 
cell may take an acid or a basic stain. Insignificant ‘bodies’ may be 
found in the nuclear cavity. These are derived either from nucleolar 
buds or from shreds of the synaptic mass. When deeply staining the 
nucleolus may lie independently of the knot to which it is attached by 
a linin strand. 
In conclusion I wish to express my gratitude to Professor J. Bretland 
Farmer for the constant help, advice, and criticism that he has given to 
me throughout the course of this work. 
Royal College of Science, 
London. 
Bibliography. 
1. Balbiani, M. : Sur la constitution du germe dans l’ceuf animal avant la fecondation. Comptes 
Rendus de l’Acad. de Sci., lviii, 1864, pp. 584-8. 
2. Brauer, A. : t)ber die Entwicklung von Hydra. Zeit. f. wiss. Zool., lii, 1891, pp. 169-216. 
3. Cardiff, Ira D. : A Study of Synapsis and Reduction. Bull, of the Torrey Bot. Club, xxxiii, 
May 1906, pp. 271-306. 
4. Chamberlain, C. J. : Spermatogenesis in Dioon edtile . Bot. Gaz., xlvii, March 1909, 
pp. 215-36. 
6. Comes, Salvatore : Untersuchungen uber den Chromidialapparat der Gregarinen. Arch. f. 
Protistenk. Jena, x, 2.-3. Heft, 1907, pp. 416-40. 
6. Hartmann, M., und Prowazek, S. : Blepharoplast, Caryosom und Centrosom. Arch. 
f. Protistenk. Jena, x, 2.-3. Heft, 1907, pp. 306-35. 
7. Hertwig, R. : Uber Kernteilung, Richtungskorperbildung und Befruchtung von Actinospkaerium 
eickhorni. Abh. bayr. Akad. Wiss. Miinchen, xix, 1899, pp. 633-734. 
8. Die Protozoen und die Zelltheorie. Arch. f. Protistenk. Jena, i, 1902, pp. 1-40. 
9. Miyake, K. : Uber Reduktionsteilung in den Pollenmutterzellen einiger Monokotylen. Prings. 
Jahrb. wiss. Bot., xlii, 1905, pp. 83-120. 
10. Nicholls, M. L. : The Development of the Pollen of Sarraccnia. Bot. Gaz., xlv, No. 1, 
Jan. 1908, pp. 331-7. 
11. Page May, W., and Walker, C. E. : Note on the Multiplication and Migration of Nucleoli in 
Nerve Cells of Mammals. Quart. Journ. Exper. Physiol., i, No. 2, April 1908, pp. 203-9. 
12. Rosen, F. : Beitrage zur Kenntniss der Pflanzenzellen. Cohn’s Beitr. z. Biol. d. Pflanzen, 
Breslau, vii, Band 70, 2. Heft, 1895, pp. 225-312. 
13. Scharff, R. : On the Intra-Ovarian Egg of Some Osseous Fishes. Quart. Journ. Micr. Sc. 
(New Series), xxviii, 18S8, pp. 53-74. 
14. Schaudinn, F. : Generations- u. Wirtswechsel bei Trypanosoma u. Spirochcete. Arb. Kais. 
Gesundheitsamt, Berlin, xx, 1904, pp. 387-439. 
15. Siedlecki, M. : Etude cytologique et cycle evolutif de Adelea ovata, Schneider. Ann. de 
l’lnst. Pasteur, xiii, Tome 3, 1899, pp. 169-92. 
16. Tangl, E. : Die Kern- und , Zelltheilungen bei der Bildung des Pollens von Hemerocallis 
fulva , L. Denkschr. der kais. Akad. d. Wiss. Wien, xlv, 1882, pp. 65-85. 
17. Walker, C. E. : The Essentials of Cytology. London, 1907. 
18. , and Embleton, A. L. : Observations on the Nucleoli in the Cells of Hydra 
Fusca. Quart. Journ. Exper. Physiol., i, No. 3, Aug. 1908, pp. 287-90. 
19. , and Tozer, F. M. : Observations on the History and Possible Function of the 
Nucleoli in the Vegetative Cells of Various Animals and Plants. Quart. Journ. Exper. 
Physiol., ii, No. 2, March 1909, pp. 187-200. 
20. Wilson, E. C. : The Cell in Development and Inheritance. New York, 1906. 
21. Wilson, M. : On Spore Formation and Nuclear Division in Mnium kornum. Ann. of Bot., 
xxiii, No. 89, Jan. 1909, pp. 215-36. 
