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>Costa Rica, 1940 : to collect bird specimens for the USNM, and examine the biological laboratory on Barro Colorado Island and an archaeological site in Guatemala; Correspondence, expense records, field notes, photographs and photographic records, and reference materials; Correspondents include Charles G. Abbot, John Enos Graf, Frank M. Setzler, and Louise M. Pearson
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Costa Rica, 1940 : to collect bird specimens for the USNM, and examine the biological laboratory on Barro Colorado Island and an archaeological site in Guatemala; Correspondence, expense records, field notes, photographs and photographic records, and reference materials; Correspondents include Charles G. Abbot, John Enos Graf, Frank M. Setzler, and Louise M. Pearson
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机译：哥斯达黎加，1940年：收集USNM的鸟类标本，并在危地马拉举行的Barro Colorado岛和考古遗址上的生物实验室;对应，费用记录，现场笔记，照片和摄影记录，以及参考资料;记者包括Charles G. Abbot，John Enos Graf，Frank M. Setzler和Louise M. Pearson
