DIAMOND-BACK TERRAPIN CULTURE 
45 
some of them do not even leave the “nests.” They hibernate during cool and cold 
weather and generally do not emerge from the shelter in which they have spent 
the winter until the first warm days of the following spring. Even then they do 
not feed until the weather gets fairly warm. At Beaufort some of the terrapins 
generally emerge from hibernation during the latter part of March and others in 
1310 1911 1912 1913 1914 19/S I9IG /9I7 1918 1919 1920 1921 1922 1925 1924 I9ZS 
Figure 1.— Rate of growth of two unselected lots of the brood of 1910. Line F represents a lot that was fed the first and in 
part the second winter, and line H represents a lot that hibernated each winter 
April. They do not feed regularly until about the latter part of May and do not 
make perceptible growth for a month or more after regular feeding takes place. 
GROWTH OF YOUNG TERRAPINS KEPT WARM AND FED DURING THE WINTER 
Winter feeding experiments were carried on at Beaufort almost from the begin- 
ning of the present investigation, and since 1912 a small house especially constructed 
for this purpose has been in use. This house, a frame structure with a natural sand 
floor, was provided with a long, gently sloping glass roof on the south side, which 
