vi Contents 



PAGE 



Edith E. Hodgkinson. Some Expei-iuicnt.s on the Rotifer Iljidatina 187 

 Arthur W. Hill. The History of I'rumda maJncoid<v, Fraiicliet, 

 under cultivation. (With Phites XT and XII and one text- 

 tigure) ........... 193 



Rainard B. Robbin.s. Partial Self- Fertilization contrasted with 



Brother and Sister Mating . . . . . .199 



R. C. PuNNETT and the late Ma.tor P. G. Bailkv. Genetic Studies 



in Poultry. 1 Inheritance of Leg-feathering .... 203 



Edith R. Saunders. On the Occurrence, Behaviour and Origin of 

 a Smooth-stemmed Form of the Common Foxglove (Digiiidis 

 purpurea) .......... 215 



No. 4 (August, 1918) 



A. St Clair Capoun. The Inheritance of Tight and Loo.se Paleae 



in Avemt nuda Grosses. (With six text-figures) . . . 229 



A. St Ci.AiR Caporn. An Account of an Experiment to Determine 

 the Heredity of Early and Late Ripening in an Oat t'ross. (With 

 one text-tigure) .......... 247 



A. St Clair Caporn. On a Case of Permanent Variation in the Glume- 

 Lengths of Extracted Parental Types and the Inheritance of 

 Purple Colour in the Cross Triticum polonicum x T. eloboni. 

 (With Plates XIII and XIV, three charts and one text-figure) . 259 



Prepared by Ida Sutton. Report on Tests of Self-Sterility in Plums, 

 Cherries, and Apples at the John Iiuies Horticultui-al Institution. 

 (With Plate XV) . . 281 



COEllIGENDA IN VOL. VI. 



P. 197, line 10, for -t-(l-s) Ji« + i('-fi»'l read + (1 - .s) |iH -t-io-l-i?!'!-" 



1 2>-+i -1 1 2' +1 - 1 1 



„ 12, for F, = sr I -2,^3 «-f 2^, v + -^j^ w| 



J r. , f2'-+i-l 1 2'-+i-l V' 



read F, = s' \-^f^ « + aFH " + ^f^ "' / • 



P. 200, line 2. for . /^"X „^_J'_ = ./'jUS 

 'J V44-S 2(2-s) V2(4-s) 



/3 T' II /3 (2 - 5)= 



"-"^ V 4 4^ "^27237) = V „V^) • 



" ■'• ■'■"'■ VA "^i \/i '""^ \^Iii "^1= Vn- 



