R. Hak; Tik I.MAS -JO? 



2. 'I'lic plitiidiiicna of |>;il. trill and ('(jlinir-U-ansferonce is present in 

 all tile I'xpiTunciits iiiailr in [iheasaiit crosses ni) Id (lade. These have 

 been observi^d to consist sometimes of transference from one area to 

 a different area in the same sex, or from one area to a ditiferent area in 

 the opposite sex, or frmii an art'a in oni' sex to the same area in the 

 opposite sex. 



•i. In three crosses these pattern and colour-transferences have 

 been accompanied by sterility, in each of the three sterile crosses 

 Phcusianus reevesi has been one of the parents, twice with other varieties 

 of Phasiaitiis, and once with (reiiiKiens. 



4. These pattern and colour-transferences are the cause in the 

 fertile hybrids of mutations, discontinuous and heritable, changes so 

 in.-irked, that if occurring from natural hybridisation between species 

 they would undoubtedly be labelled varieties by the .sj'stematist. In 

 some cases they are associated with degeneration of dimension in the 

 feathers. 



5. In the fertile hybrids, plumage, dimensicm, leg colour, and 

 structure, habit, call, are all correlated, but moult is independent and 

 liable to great disturbance in hybridisation. 



6. The question of dominance in the Silver Swinhoe crosses (fertile 

 hybrids) remains in doubt. For whilst in Series 1, Swinhoe seems 

 eliminated after a second dose of female Silver, we find in Series 1" that 

 Silver is apparently eliminated after the second dose of male Swinhoe, 

 And though in Series 1 the origin of several areas of di.scontimious 

 mutation are directly traced to pattern-transference from the Swinhoe, 

 yet on the other hand some of the hybrid plumage in Series 1" of th(> 

 three male F„ "BAA" under examination will probably be found to 

 be due to Silver pattern-transference. Of that there is little doubt. 



The contemplated paper on the inter se experiments in this 

 cross may throw light on the subject, but records and observations 

 do not encourage this bt'lief: however research may modify that 

 impression. 



