THE CAMPINES 



61 



When these cross-bred moths mated inter se, they pro- 

 duced (d) grossulariata males and grossulariata females; 

 also laticolor females but no laticolor males. That is to 

 say, if the experiment in Campines continued on analog- 

 ous lines, the Silver (to all outward appearance) cross- 

 bred chickens, mated together, would produce (d) Silver 

 cockerels. Silver pullets and Gold pullets — but no Gold 

 cockerels; and, as a matter of fact, when this mat- 

 ing was tried this is what happened. Thus in both 

 reciprocal crosses — (a) Gold male and Silver female, 

 and (c) Silver male and Gold female — the first gen- 

 eration chickens, when bred together, failed to pro- 

 duce in the next generation the Golden male required. 

 The second generation from (a) gave (b) Gold cock- 

 erels, Belgian type, and the second generation from (c) 

 failed to give in (d) any Gold males at all. 



As a matter of fact, the English-type male was pro- 

 duced in the same year as the (d) generation just re- 

 ferred to — by following on the lines of Mr. Doncaster's 

 experiments. 



When these experiments with moths were first car- 

 ried out, there were no males known of the laticolor 

 variety. Pursuing his investigations, Mr. Doncaster 

 mated together a grossulariata cross-bred male and a 

 laticolor female. This union produced grossulariata 

 males and females, and also laticolor males and females. 

 These results determined the next mating for the pro- 

 duction of the English-type Gold cockerel. Substitute 

 Silver cockerel (offspring of Silver cock and Gold hen) 

 for grossulariata cross-bred male, and Gold hen for 

 laticolor female — then the offspring should be Silver 

 cockerels and pullets and Gold cockerels and pullets. 

 This was, in fact, the mating which produced the Gold 

 cockerel, English type. 



Below are given in tabular form the results of the 

 various matings between the Silver and Golden varie- 

 ties of the Campine fowl. Those who would further 



trace the similarity between these and the matings of 

 the two varieties of the Currant Moth, are referred to 

 "Mendel's Principles of Heredity"— W. Bateson, pp. 174 

 to 177, and "Repiirts to the Evolution Committee of the 

 Royal Society," No. 4. 



English Type Gold Male Produced in Belgium 



In the autumn of 1911, when traveling in Belgium, 

 I visited tlie yards of Dr. Gommers of Meerle. Here I 

 saw, among the birds bred that year, a Gold Campine 

 eoekerel, English type. Mme. Van Schelle, who ac- 

 companieil mc, purchased this bird. This was the sire 

 of the winning birds shown by Mme. Van Schelle and 

 Mr. R. Edwards, jun. 



Dr. Gommers was unable to give me the pedigree 

 of the bird; but lie attributed it to the effect of the in- 

 fusion of "Prise de la Hollande" blood. I quote from a 

 letter recently received from him; 



"L'ori^ine (du coquelet) n'est pas tres claire. II y 

 avait dans mon parquet: 



(1) 

 (2) 

 (3) 



(4) 



Un coq. Campine dore beige. 

 I poulette frise doree. 

 I poule provenant de 



Coq. I-Iambourg dore a plumage de poule 

 et de poule Campine doree. 

 quelques poules doreses. 

 Je ne saurais dire au juste la provenance, je suppose 

 de la poule Frise, vu que le pere de cette poule etait 

 aussi a plumage de poule." 



I know, from experiments carried on in the autumn 

 of 1912, that this is a possible mode of production. I 

 imported from Dr. Gommers two cockerels — Silver and 

 Gold — Frise de la Hollande. Mated with Campine pul- 

 lets of their own color, they produced English and Bel- 

 gian-type cockerels. As soon as we were satisfied that 

 clear-backed males could be thus produced, we potted 

 them. They were useless for breeding-in, as they were 



Gold Male 



Silver Female 



Silver Males 

 (Belgian type) 



Gold Females 



Silver Cross-bred Male X 

 (offspring of A) I 



Gold Cross-bred Female 

 (offspring of A) 



Silver Males Gold Males Silver Females Gold Females 

 (Belgian type) (Belgian type) 



Silver Male 



Gold Female 



Silver Males 

 (English type) 



Silver Females 



D 



Silver Cross-bred Male X Silver Cross-bred Female 

 (offspring of C) j (offspring of C) 



Silver Males 



Silver Females 



Gold Females 



Silver Males 

 (Eng. type) 



Silver Male (offspring of C) 



I 



Gold Female (pure) 



I 



Silver Males 



(Belgian type) 



I I 



Gold Males Gold Males 



(English Type 1912) (Belgian type) 



I 

 Silver Females 



Gold Females 



Silver Males 



Silver Male (offspring of C) X Silver Female (pure) 

 \ 



Silver Females 



Gold Females 



Matings of Rev. B. Lewis Jones to Produce English Type Gold Cockerel. 



