a 8 ne a SS 
A STUDY IN CHROMOSOME REDUCTION. 623 
LITERATURE CITED. 
Auuen, C. E., 1903, “The Early Stages in Spindle-Formation in the Pollen Mother-cells of Larix.” Ann. 
Bot., vol. xvii. p. 281, 1903. 
1905, ‘‘Nuclear Division in the Pollen Mother-cells of Liliwm Canadense.” Ann. Bot., vol. xix. 
p- 189, 1905. 
1905, ‘Das Verhalten der Kernsubstanzen der Synapsis in den Pollenmutterzellen von Liliwm 
Canadense.” Jahrb. Wiss. Bot., xlii. p. 72, 1905. 
Benaserr, W., 1894, “ Zur Kenntniss der Karyokinese den Pflanzen.” ora, lxxix. p. 430, 1894. 
Bereus, J., 1904, ‘‘ La formation des chromosomes hétérotypiques dans la sporogénese végétale.” La Cellule, 
xxii. p. 43, 1904. 
1905, ‘La formation des chromosomes hétérotypiques dans la sporogéneése végétale.” La Cellule, 
xxii, p. 141, 1905. 
1905, ‘‘ Le fuseau hétérotypique de Paris quadrafolia.” La Cellule, xxii. p. 203, 1905. 
Carovirr, J. D., 1906, “‘ A Study of Synapsis and Reduction.” Bull. Torr, Bot. Club, xxxiii. p. 271, 1906. 
Davis, B. M., 1899, “The Spore Mother-cells of Anthoceros.” Bot. Gaz. 
1909, ‘‘ Pollen Development of Ginothera grandiflora.” Ann. Bot., xxiii. p. 551, 1909. 
— “The Reduction Division of Qinothera biennis.” Ann. Bot., xxiv. p. 631, 1910. 
1911, ‘Cytological Studies on Ginothera III. A comparison of the Reduction Divisions of CEnothera 
Lamarkiana and O. Gigas.” Ann. Bot., xxv., No. ¢., p. 941, 1911. 
Diesy, L., 1910, ““The Somatic, Premeiotic, and Meiotic Nuclear Divisions in Galtonia candicans.” Ann. 
Bot., vol. xxiv., No. xcvi., 1910. 
Dixoy, H. H., 1901, ‘On the First Mitosis of the Spore Mother-cells of Liliwm.” Notes Bot. Sch. Trin. Coll. 
Dublin, 1901. 
Farmar, J. B., 1893, “On Nuclear Division in the Pollen Mother-cells of Liliwm martagon.” Ann. Bot., vii. 
p. 392, 1893, 
1895, “Ueber Kerntheilung in Liliwm Antheren, besonders in Bezug auf die Centrosomenfrage.” 
Flora, \xxx. p. 56, 1895. 
and Moors, 1905, ‘‘On the Meiotic Phase in Animals and Plants,” Quar. Jour. Micro. Soc., xlviii. 
p. 489, 1905. 
and Diesy, L., 1910, ‘On the Cytological Features exhibited by certain Varietal and Hybrid Ferns.” 
Ann. Bot., xxiv. p. 191, 1910. 
J. B., 1912, ‘Nuclear Osmosis and its assumed Relation to Nuclear Division.” New. Phyt., vol. xi., 
No. 4, April 1912. 
Presenpatt, A., 1912, “Cytologische und Entwicklungsgeschichtliche Studien an Myricaria Germanica. 
1912. 
Gates, R. R., 1909, “The Behaviour of Chromosome in (nothera lata x O. gigas.” Bot. Gaz., xlviii. 
p179, 1909. 
1908, ‘‘ A Study of Reduction in Gimnothera rubrinervis.” Bot. Gaz., xliii. p. 1, 1908. 
1911, “The Mode of Chromosome Reduction.” Bot. Gaz., li. p. 321, 1911. 
Grecorre V. er Wyczarts, 1903, “La reconstitution du noyau et la formation des chromosomes dans les 
cinises somatiques.” La Cellule, xxi., 1903. 
— 1906, “L’Element chromosomique dans les cellules végétales.” La Cellule, xxiii. p. 311, 1906. 
——— 1907, “La Formation des Gemini hétérotypiques.” La Cellule, xxiv. p. 369, 1907. 
1910, “Les Cinises de maturation dans les Deux Régnes.” La Cellule, xxvi. p. 223, 1910. 
Harroe, M., 1905, “The Dual Force of the Dividing Cell.” Pt.I. The achromatic spindle figure illustrated 
by magnetic chains of force, Proc. Roy. Soc. B., \xxvi. p. 548, 1905. 
Just, O., 1897, “Die kerntheilungen in den Pollenmutterzellen von Hemerocallis fulva, und die bei 
denselben auftreten den Unregelmassigkeiten.” Jahrb. Wiss. Bot., xxx. p. 205, 1897. 
Lawson, A. A., 1900, “Origin of the Cones of the Multipolar Spindle in Gladiolus,” Bot. Gaz., xxx. 
p. 145, 1900, 
