differences, "but it is fairly easy to miss a Laysan as it comes 
directly toward or goes away from the ship as the dart, vings are 
lost against the sea dad the white body blends in with the white caps. The 
teans have a characterisit sillouette and straight arrow-like pattern. 
Their diving also identifies the group. But one meat be able to be sure 
j 
of the color of the back to separate the sooty and the gray-back. The 
tail on the tropicbird is quite difficult to be sure of at great heights, 
and this is apparently where they normally fly at sea. The Jaegers have 
a characterisitic flight and silloufette also, but it is difficult to 
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pick out the pattern of the middle rectrices as they follow behind the 
ship. We needed the collection to be sure of % this identification and 
we vere Just liucky that the species cooperated by following so closely. 
Speaking of Jaegers, we hod our first tentative identification of one 
behind thse ship on the way back at 1518. The next record, a positive 
one, did not come until 1621 , and after that they were co 
n around 
the ship until dark. 
6 February 19 6? 
Pearl Harbor 
The ship was tied up at Pearl Harbor: all day today. We went downtown 
and went to the aquarium and the zoo. The former has some very interesting 
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exhibits of coral, shells, and dried Crustacea from this area and many 
tanks of live, local fishes. They' also have some of the larger fish 
mounted and some exhibits on the oceanography of the area. In an outdoor 
pool they have four harbor seals, Phoca vitulina, many green, and 
one hawksbill turtle. I watched the seals for quite a while hoping to 
get son® idea of what I would be up against. They are certainly most 
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agile in the water. There is a fountain type structure at one end of 
the ppol and the seals can leap up out of the water into the little 
