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San jfoee Project 
Sept 15, 1944* 
COLONEL ROBERT D MCLEOD, JR 
Chief of Technical Division 
San Jose Project 
Dear Sir t 
Area D was revisited after an interval of three months on Sent, 10 
1944* to determine it*s biological recove 
5th, 1944. 
following the tests of June 
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On this date the foliage recovery seemed nearly complete; that is, 
ractieally the normal amount of shade and shelter for animals of the jungle 
was present, leather conditions, particularly excessive rain, made observations 
of the animal life somewhat difficult and perhaps incomplete, but to all appear¬ 
ances the animal population present was normal in composition and diversity of 
species. 
The actual number of individual animals present ms lower than normal 
probably as a direct result of the defoliated condition prevailing during 
the breeding season of some of the bird species. The surrounding unaffected 
areas of forest had been the source of enough individuals to spread over 
the whole of Area D, even if not in completely normal total population: H|| 
is. 
Animal recovery in the stream (sterilised on June 5, to 1000 yds. down 
stream^ was incomplete, because a breeding season for these aquatic species 
had not yet occurred to supply the great number of individuals necessary to 
normally fill the vacant habitat space. Certain species such as the Fresh¬ 
water Shrimp and Eels were present in small numbers, obviously spread from the 
unaffected tributory stream SW of Area D - other species, such as the large 
brown fresh water Crab had not reappeared in Area D in the three months period. 
9 
In general it maybe said that animal recovery was incomplete, but tip 4o a 
nearly normal appearance of the fauna after a three months interval. 
Sincerely, 
I.P.E. MORRISON 
Asst Curator, Div. of Molluscs 
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