The Dancing Mouse 



in comparison with that of the common mouse, found that 

 it can hold up only about 2.8 times its own weight, whereas 

 the common white mouse can hold up 4.4 times its weight. 



FIGURE i. Typical markings of dancers. A, blank outline of mouse for record. 

 B, markings of No. 2 rf, born September 7, 1905, of unknown parents, died 

 March 30, 1907. C, markings of No. 43 9, born November ro, 1906, of 212 and 

 311. D, markings of No. 151 ?, born February 28, 1906, of 1000 and 5, died 

 February 26, 1907. 



