— 119— 



taken; the six pairs in dispute were labelled by me "(J^ and Q taken in 

 cop.", so that assumption in this case was unnecessary. 



Memory as to the number or per cent of the specimens taken by an 

 individual collector after a term of nearly two years, is not wholly trust- 

 worthy and by Mr. Stretch's reasoning it could be logically inferred that 

 I collected 95 per cent of the Coleoptera. According to my memory 

 such a conclusion would be far in excess of the truth, through not more 

 so than that Mr. Stretch collected fully 95 per cent of the Diurnals. It 

 is immaterial how many or how few butterflies Dr. Hagen collected, but 

 I can state positively that he caught and handed to me for labelling 

 more than ^vd pairs of a single species. Mr. Stretch must surely have for- 

 gotten the many discussions that took place concerning machaon, 7nena- 

 pia and kto, not to mention others, when he wrote that Dr. Hagen knew 

 nothing about the butterflies, and I can bear willing testimony that Mr. 

 Stretch was too energetic and too enthusiastic a collector to allow his 

 many interesting captures to miss so appreciative an audience as Dr. 

 Hagen proved himself on many occasions. 



Mr. Edwards' statement of Mr. Stretch's remarks, in relation to the 

 Colias whose color was changed by cyanide are not entirely consistent. 

 In June 1884 he wrote me that Mr. Stretch claimed that Dr. Hagen was 

 wholly mistaken in his account of the matter and in Papilio Vol. IV, p. 

 170 (received in July 1885,) he writes that Mr. Stretch, in answer to his 

 question as to what he (Mr. S. ) knew about this Colias, "replied that he 

 knew nothing of it. " 



Mr. Edwards' English while not "obscure" is certainly misleading 

 when he says that Mr. Stretch did not use a cyanide bottle, as he prob- 

 ably intended saying that Mr. Stretch did not use the cyanide bottle in 

 question. 



Mr. Stretch used a cyanide bottle all the time he collected in Oregon 

 and Washington Terr. 



In regard to the Colias similar in color to C. aslraea, I have only to 

 say that a yellow Colias recognised in the field as corresponding closely 

 to, if not identical with others previously collected, was placed in a damp, 

 freshly prepared cyanide bottle, and when taken from the bottle the 

 hind wings were wet; the specimen was preserved and the facts noted at 

 the express wish of Dr. Hagen. 



The application of the term "omnivorous' to the new collecting 

 bottle is not clear to me. 



Yours, Saml. Henshaw. 



