254 



AGE, GROWTH, AND DEATH 



days, and then after every thirtieth day, and to avoid accidental 

 variations, also five days before and five days after each thirtieth 

 day : for instance, the months being assumed at 30 days, the ani- 

 mals would be weighed for the eighth month at 240, also at 235 

 and 245 days, and the next set for nine months, 265, 270, and 275, 

 and so on to the end of the second year after birth, at which age 

 the observations were stopped. Of no individual have I an abso- 

 lutely complete series of weights, but of a good many the series 

 are nearly complete. A very few of my animals died from disease. 



GROWTH OF RABBITS. A, MALES 



