7 
Cat killing and tosect collecting proceeded as usual. Forty- 
eight cats killed today. 
Huber found a number of interesting live shells a Cyp raea lynx 
- ~ . % . • * * . V • . 
(alive, I think) -which had a generally darker surface coloration than 
others of this species I have seen. He also found a number of money 
4 
cowries which were about the maximum size (about 1 inch). Smaller 
specimens of this species appear to have a whitish cast to the shell 
* - - n * it 
while larger individuals have a pronounced yellowish color. 
Went out and banded masked boobies again this evening. Did ;>V> 
Birds now relatively hard to get but managed to finish second string; 
do third string, and ^3 of Doug 1 s bands in an enormous club (some 1100- 
1>00 birds) near the north end of the island. A number of these birds 
were color-marked from previous nights. 
Arose about 7:50 and went cat-hunting with Kick and Big Charlie. 
Saw relatively few cats four, which we got. One of the four was a 
kitten and I demurred at giving the final blow but Kick was only two glad 1 
to oblige. 
Collected about seven Brown Booby eggs, (two singles, five eggs 
the fresher appearing of two) and three Masked Booby eggs. One of the 
latter was a "freak” egg only about l/2 the normal size. In 
addition it lacked the usual chalky coating. It contained (when prepared) 
a normal yolk but the egg white appeared proportionally thicker.). These 
eggs plus all red -foot eggs collected on the 15th were all fresh. 
Along the northwest shore the reef (a short distance north of 
Millersville) has a large number of lat rocks which Kick and I examined 
for shells.. Several live money cowrie were found (as well as what 
