504 INTRODUCTION TO CYTOLOGY 



Nicholson, F. M. 1923. Jour. Exp. Med. 37: 221-230. [Rickettsia.] 

 NicoLosi-RoNCATi, F. 1912. Boll. Soc. Bot. Ital. 59-62. [Red algaj.] 

 NiENBURG, W. 1914. Zeitschr. Bot. 6 : 369-400. 17 figs. [Polystigma.] 

 NiESCHULZ, O. 1922. Arch. Protist. 45 : 241-263. illus. [Trypanosome.] 

 NiKOLAEWA, A. 1920o. Verh. Kong. Pflanzenziicht. Saratov. [Triticum.] 



1924. Sci. Agron. Jour. 1 : 570-576. illus. [Rye X wheat.] 

 NiSHiMURA, M. 1926. Jour. Coll. Agr. Hokkaido Imp. Univ. 17: 1-61. illus. 



1928. Bot. Mag. Tokyo 42 : 154-177. illus. [Triticum hybrids.] 

 NiSHiYAMA, I. 1931. Jap. Jour. Genetics 7: 49-102. illus. [Fatuoid oats.] 

 NoACK, K. 1921. Zeitschr. Bot. 13: 1-35. pis. 1, 2. [Origin of plastids.] 



1922. Jahrb. Wiss. Bot. 61: 459-534. 56 figs. [Pelargonium.] 



1924. Verh. Phys.-Med. Gesell. Wlirzburg 49: 45-93. [Pelargonium.] 



1925. Verh. Phys.-Med. Gesell. Wiirzburg 50: 47-97. [Variegation.] 

 Noll, F. 1903. Biol. Centralbl. 23 : 281-297, 321-337, 401-427. [Brijopsis.] 

 NoREN, C. O. 1904. Ark. Bot. Svensk Vet.-Akad. 3: pp. 11. [Juniperus.] 



1907. Uppsala Univ. Arsskr., 64 pp. 4 pis. [Juniperus.] 

 NoTHN.\GEL, M. 1916. Bot. Gazette 61: 453-476. pis. 28-30. [Meiosis.] 



1918. Bot. Gazette 66: 143-161. pis. 3-5. [Double fertilization.] 

 NowiKOFF, M. 1909. Anat. Anz. 34: 168-173. pi. 2. [Chromidia.] 

 NussBAUM, J. 1913. Arch. Zellf. 10: 359-367. [Golgi material, chromidia, etc.] 



O 



Oehlkers, F. 1916. Ber. Deu. Bot. Gesell. 34: 223-227. [Chara.] 

 1924. Zeitschr. Ind. Abst. Vererb. 34: 259-283. [CEnothera: review.] 



1926. Jahrb. Wiss. Bot. 65: 401-446. [CEnothera.] 



Oes, a. 1908. Bot. Zeitung 66: 89-120. pi. 5. [Action of nuclease.] 



1910. Zeitschr. Bot. 2 : 39-49. 6 figs. [Action of nuclease.] 

 Ogata, M. 1883. Arch. Anat. Physiol., Physiol. Abt., 405-437. pi. 6. 

 Oguma, K. 1921. Jour. Coll. Agr. Hokkaido Imp. Univ. 10. [Mantis.] 



1927. Jour. Coll. Agr. Hokkaido Imp. Univ. 16: 203-227. illus. [Pigeon.] 

 1930. Arch, de Biol. 40 : 205-226. illus. [Man.] 



Oguma, K., and H. Kihara. 1922. Dobutsu-gaku Zasshi 34: 424-435. 4 figs. 



1923. Arch, de Biol. 33: 493-514. 3 pis. [Human chromosomes.] 

 Oguma, K., and S. Makino. 1932. Jour. Genetics 26: 239-254. 

 Ohashi, H. 1930. Bot. Gazette 90: 177-197. illus. [CEdogonium.] 



Ok.\be, S. 1929. Sci. Rep. Tohoku Imp. Univ. 4 : 661-669. illus. [Sargassum.] 

 Olive, E. W. 1904. Beih. Bot. Centralbl. 18: 9-44. pis. 1, 2. [Cyanophycese.] 



1907. Trans. Wis. Acad. Sci. 15 : 754-773. pi. 47. [Ceratiomyxa.] 

 Oliver, C. P. 1929. Science 71: 44-46. [X-rays and mutation.] 

 Oliver, F. W. 1888. Ann. Botany 1 : 237-253. pi. 12. [Plasmodesms.] 

 Olson, A. R., and G. N. Lewis. 1928. Nature. London 121 : 673-674. 

 Oltmanns, F. 1889. Bibl. Bot. 14: 1-94. 15 pis. [Fucacea?.] 

 1895. Flora 80 : 388-420. pis. 6-10. [Vaucheria.] 

 1898. Flora 85: 1-18. pis. 1, 2. [Coleochceie.] 

 1922-1923. Morphologic und Biologic der Algen. 2d ed. Jena. 

 O'mara, J. 1931. Cytologia 3 : 66-76. illus. [Yucca.] 



Ono, T. 1926. Sci. Rep. Tohoku Imp. Univ. IV 2: 159-160. illus. [Rumex.] 

 1927a. Bot. Mag. Tokyo 41 : 632-633. illus. [Rumex.] 

 19276. Bot. Mag. Tokyo 41: 601-604. [Triploid Primula.] 



1928. Bot. Mag. Tokyo 42 : 524-533. illus. [Polyploid Rumex.] 

 1930a. Bot. Mag. Tokyo 44: 168-176. illus. [Intersexes in Rumex.] 



