vi Contends 



No. 3 (December, 1921) 



FAQE 



BuNUO MiVAZAWA. Dwarf Forms in Barley. (With Plate XX) , . 205 



F. R. Parnbll. Notes on the Detection of Segregation by the exami- 

 nation of the Pollen of Rice. (With Plate XXI) . . .209 



Rudolph Beer. Notes on the Cytology and Genetics of the Genus 



Fuchsia. (With Plates XXII— XXIV) 213 



J. S. Huxley. Linkage in Gammarus chevreuxi . . . . 229 



R. C. PuNNETT and M. S. Pease. Genetic Studies in Poultry. IV. On 



the barred plumage of certain breeds. (With two Text-tigures) . 235 



E. S. Salmon and H. Wormald. A study of the Variation in Seedlings 



of the Wild Hop (Hmnulus Lupulus L.). (With Plate XXV) . 241 



W, Bateson and Miss A. E. Gairdner. Male Sterility in Flax, 



subject to two types of Segregation. (With Plate XXVI) , . 269 



H. Onslow. The Inheritance of Wing-Colour iu Lepidoptera. VI. 

 Diaphora mendica CI. and var. rustica Hb. (With ten Text- 

 figures and Plate XXVII) 277 



H. Onslow. The Inheritance of Wing-Colour in Lepidoptera. VII. Me- 

 lanism in Hemerophila abrujjtaria (var. fuscata Tutt). (With 

 Plate XXVIII) 293 



Kirstine Smith. Remarks on the method of calculation proposed by 



Mr H. L. Trachtenberg for Diallel Crossings .... 299 



