NOTES 

 SINGING MICE 



C. A. COB URN 



The Harvard Psychological Laboratory 



Volume 2, number 5, of this journal contained a report of 

 observations made on a "singing" mouse. This individual, a 

 female, was bred with both wild and tame males but the singing 

 did not appear in any of her thirty-three offspring. 



In November, 191 2, a singing mouse, a female, was discov- 

 ered in the home of an Italian family in New York City. It 

 was reported to the Harvard Psychological Laboratory and later 

 brought here for observation. 



With it was captured a full-grown male and two young, 

 probably her mate and young. She was bred with this male 

 but, as in the former case, no "singers" appeared. 



In March, 191 3, a farmer in Michigan caught a "singing" 

 mouse which he thought was a male. It was sent here for 

 breeding purposes, but it, too, proved to be a female. 



It has been claimed that the singing occurs only in females. 

 The writer is very anxious to learn whether this is true. He 

 will be grateful for any information which other observers may 

 be able to send him. He is especially desirous of obtaining 

 "singing mice" in order to determine whether the behavior is 

 inheritable. 



Persons who have ekher direct or indirect knowledge of 

 "singing" individuals are requested to communicate with the 

 writer at the Harvard Psychological Laboratory, Emerson Hall, 

 Cambridge/ Mass. 



388 



