44 
to a law of growth briefly presented in a recent paper on the 
“ Growth of the Farm Ungulates” * — that the rate of growth gradu- 
ally lessens in intensity from or near the beginning of development. 
In other words if we take any three stages at equal intervals in the 
development or growth of an individual it will be found that the 
progress made between the first two stages is greater than that made 
between the second and third. The conditions are apparently met 
in such animals as the crab and lobster by a gradual extension of 
the time between the moults. This must all the more clearly be 
the case since the few details already available in the case of such a 
measurement as the width of the carapace of the crab show that the 
increment is much the same each time, viz., about 2/7th. 
4 The Veterinarian, 1900-1. 
