268 INTRODUCTION TO CYTOLOGY 



MOORE, A. C. 1905. Sporogenesis in Pallavicinia. Bot. Gaz. 40: 81-96. pis. 



3, 4. 

 MOORE, J. E. S. 1896. On the structural changes in the reproductive cells during 



the spermatogenesis of the Elasmobranchs. Quar. Jour. Micr. Sci. 38 : 275-314. 



pis. 13-16. 

 MOORE, J. E. S. and EMBLETON, A. L. 1906. On the synapsis in Amphibia. Proc. 



Roy. Soc. London 77 : 555-562. pis. 20-23. 

 MOTTIER, D. M. 1897. Beitrage zur Kenntniss der Kerntheilung in den Pollen- 



mutterzellen einiger Dikotylen und Monokotylen. Jahrb. Wiss. Bot. 30: 



169-204. pis. 3-5. 

 1903. The behavior of the chromosomes in the spore mother-cells of higher plants 



and the homology of the pollen and embryo-sac mother-cells. Bot. Gaz. 36 : 



250-292. pis. 11-14. 



1905. The development of the heterotypic chromosomes in pollen mother-cells. 

 Bot. Gaz. 40: 171-177. 



1907. The development of the heterotypic chromosomes in pollen mother-cells. 



Ann. Bot. 21 : 309-347. pis. 27, 28. 

 1909. Prophases of heterotypic mitosis in the embryo-sac mother-cells of LUium. 



Ibid. 23: 343-352. pi. 23. 

 1914. Mitosis in the pollen mother-cells of Acer negundo, L., and Staphylea 



trifolia, L. Ibid. 28: 115-133. pis. 9, 10. 

 MOTTIER, D. M. and NOTHNAGEL, M. 1913. The development and behavior of 



the chromosomes in the first or heterotypic mitosis of the pollen mother-cells 



of Allium cernuum Roth. Bull. Torr. Bot. Club 40: 555-565. pis. 23, 24. 

 MULLER, H. A. CL. 1909. Ueber karyokinetische Bilder in den Wurzelspitzen von 



Yucca. Jahrb. Wiss. Bot. 47: 99-117. pis. 1-3. 



1911. Kernstudien an Pflanzen. I u. II. Arch. Zellf. 8: 1-51. pis. 1, 2. 

 NAKAHARA, W. 1919. A study of the chromosomes in the spermatogenesis of 



the stonefly, Perla immarginata Say, with special reference to the question of 



synapsis. Jour. Morph. 32 : 509-530. pis. 3. 

 1920. Side-to-side versus end-to-end conjugation of chromosomes in relation to 



crossing over. Science 62 : 82-84. 

 NEMEC, B. 1903. Ueber die Einwirkung des Chloralhydrats auf die Kern- und 



Zell-teilung. Jahrb. Wiss. Bot. 39: 645-730. figs. 157. 

 NICHOLS, G. E. 1908. The development of the pollen of Sarracenia. Bot. Gaz. 



46 : 31-37. pi. 5. 

 NOTHNAGEL, M. 1916. Reduction divisions in the pollen mother-cells of AUium 



tricoccum. Bot. Gaz. 61: 453-476. pis. 28-30. fig. 1. 

 OEHLKERS, F. 1916. Beitrag zur Kenntniss der Kernteilung bei den Characeen. 



Ber. Deu. Bot. Ges. 34: 223-227. 

 OLIVE, E. W. 1907. Cytological studies on Ceratiomyxa. Trans. Wis. Acad. Sci. 



15 : 754-773. pi. 47. 

 OSTERHOTJT, W J. V. 1897. Ueber Entstehung der karyokinetischen Spindel bei 



Equisetum. Jahrb. Wiss. Bot. 30: 159-168. pis. 1, 2. 

 OVERTON, E. 1893. On the reduction of the chromosomes in the nuclei of plants. 



Ann. Bot. 7 : 139-143. 

 OVERTON, J. B. 1905. Ueber Reduktionsteilung in den Pollenmutterzellen einiger 



Dikotylen. Jahrb. Wiss. Bot. 42 : 121-153. pis. 6, 7. 



1906. The morphology of the ascocarp and spore formation in the many-spored 

 asci of Theocalheus pelletieri. Bot. Gaz. 42: 450-492. pis. 29, 30. 



1909. On the organization of the nuclei in the pollen mother cells of certain 

 plants, with special reference to the permanence of the chromosomes. Ann. 

 Bot. 23: 19-61. pis. 1-3. 



