The Spermatogenesis of Hybrid Peas 539 



Mendel, G. ( i ) Experiments in plant liyliridisalion (translation). Jour. Roy. Ilort. 

 Soc. 26 : 1. 1901 ; (2) Versuche iiber Pllanzenhybriden (reprint). Flora, 89: 

 364. 1901 ; Id. Ostwald's Klassiker der exakten Wiss. No. 121. I901. 



Metcalf, H. Certain problems relating to the individuality of chromosomes. Proc. 

 Neb. Acad. Sci. 7: 109. 190I. 



Millardet, A. (l) Essai sur I'hybridation de la vigne. Mem. Soc. Sci. Bordeaux, 

 IV. 2: 299. 1891 ; (2) Importance de I'hybridation pour la r^constitution des 

 vignobles. Compt. Rend. 119: 1176. 1894; (3) Note sur I'hybridation sans 

 croisement ou fausse hybridation. Mem. Soc. Sci. Bordeaux, IV. 4 : 347. 

 1894. 



Moenkhaus, W. J. Some stages in hybrid development. Science, II. 11 : 788. 1900. 



Molliard, M. Note sur les particularites t[ue presentent les fleurs doubles du Petunia 

 Jiybrida. Bull. Soc. Bot. France, 40 : 330. 1893. 



MuUer, F. (l) Ein Versuch mit Doppelbestaubung. Flora, 83: 474. 1897; (2) 

 Mischlinge von Ruellia formosa und sylvaccola. Abh. Nat. Ver. Bremen, 12 : 



379- i89;v 

 MuDSOn, W. M. (l) Preliminary notes on the secondary effects of pollination. Maine 



Agric. Exp. Sta. Rep. 1892: 29. 1892; (2) The development of a tomato 



hybrid. Proc. Soc. Prom. Agric. Sci. 21 : 1900. 

 Murbeck, S. Neue oder vi'enig bekannte Hybriden. Acta Horti Bergiani, 2* : 3. 



1S94. 

 Naudin, C. Variation desordonnee chez les hybrides. Revue Hort. 70 : 509. 1898. 

 Oliver, G. W. Hybridization. Am. Gard. 20 : 397. 1899. 

 Pammel, L. H. (l) Experience in crossing cucurbits. Am. Gard. 14 : 459. 1893; 



(2) On the crossing of cucurbits. Bull. Iowa Agric. Exp. Sta. 19: 595- 1892; 



(3) Results of crossing cucurbits. Bull. Iowa Agric. Exp. Sta. 23 : 906. 

 1894; (4) The effects of cross-fertilization in plants. Trans. Iowa Hort. Soc. 

 26: 439- 1891. 



Parmentier, P. Une nouvelle fougere hybride. Bull. Acad. Internal. Geogr. Bot. 9 : 



40. 1900. 

 Paulesco, P. R6cherches sur la structure anatomique des hybrides. (Th^se) Univ. 



(leneve Lab. Bot. IV. 11 : 103. I900. 

 Petrucci, G. B. Ricerche anatomiche sopra la Chamaerops humilis (Linn.), la 



Phoenix dactylif era (Linn.) ed i loro pretesi ibridi {^Alicrophoenix). Malpighia, 



14 : 306. 1900. 

 Poeverlein, H. Die bayerischen Arten, Formen und Bastarde der Gattung Potentilla. 



Denks. Bot. Gesells. Regensb. 7: 147. 189S. 

 Preda, A. Contributo alio studio delle narcissee italiane : Ibridi. Nuovo Giorn. 



Bot. Ital. II. 3 : 404. 1896. 

 Reed, M. (l) Cross and self-fertilization. Bot. Gaz. 17: 330. 1892; (2) Cross- 

 fertilization of petunias. Bot. Gaz. 19: 336. 1894. 

 Rehder, A. Notes on liybrids of Quercus ilicifolia. Rhodora, 3 : 137. 1901. 

 Rimpau, W. Kreuzungsprodukte landwirthschaftlichen Kulturpflanzen. Landw. 



Jalirb. 20 : — . 189I. 

 Rodigas, E. Injudicious hybridisation. Gard. Chron. III. 17 : 16. 1895. 

 Rolfe. R. A. Hybridisation viewed from the standpoint of systematic botany. Jour. 



Roy. Hort. Soc. 24 : 181. 1900. 

 Rosenberg, 0. Das Verhalten der Chromosomen in einer hybriden Pflanze. Ber. 



Deuts. Bot. Gesells. 21 : 110. 1903. 



