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Laboratory studies to be done Include seroepidemiological antibody 
determinations and selected biochemical studies and hematology. Genetic studies 
include red cell enzyme determinations on frozen erythrocytes, and palm print 
measurements, color blindness evaluation, and complete record of congenital 
anamolies found and observable familial traits. Full geneological information 
has been collected on all islands including extensive study of marriage systems 
and specific patterns that have occurred, 
A more detailed report of the overall medical observations and a detailed 
list of patients by island requiring further attention has been mailed to your 
medical director from Santa Cruz, and a copy is attached. 
We thank you for your cooperation and assistance. We have enjoyed our work 
in the New Hebrides greatly. 
The enormous special effort Dr, Roger Greenough, your Medical Director, has 
made in making this expedition possible and insuring its success has been fully 
realized and greatly appreciated by all members of our team. 
Sincerely, 
Enclosure : 
Report 
D, Carleton Gajdusek, M,D 
Chief Scientist 
Alpha Helix Expedition 
