Pearson 1964 Miz, Buenos Aires City, Argentina Sept. 14, 1964 Sept. 14 Put 50 museum specials with corn meal at dusk along a low rib system from the new biology building. Fresh bur clover and grasses. No runways seen. Temp. warmer, light breeze. Carol saw Norway Rote along the big cement pond. Sept. 15 at 6:30 a.m. warm + clear. Traps held 13 Abodon- and 1 Oryzomya. Almost all of them near refuges of some sort (driftwood log, pile of rocks or cans etc.), Sept. 16 Rain last night. Set 60 museum specials in Miz, same line as before plus 3 other short lines. Set at 5 p.m. Corn meal. Sunny, warm. Sept. 17 Night clear, morning warm + sunny. At 7 a.m. traps held 12 Abodon and 2 Oryzomya. words Cabo, 25 km NNE near del Plata, Buenos Aires Prov. Sept. 19 Set 6:30 a.m. with Caller, Buech, Lintevenda, and Goldstein to locate a two-forevegetative area and to catch some Moreodelfino. With guidance from Goldstein we looked first a few hundred yards to the north of the previous trapping place at Santa Clara del Mar (Playa Corbae or Corbinas): No houses, and looked fine except not many trees and most of it had been burned. We then drove further north and looked at another place a few km north (F.I.N. Soc.Anon.) a big real estate development with "streets" marked but no houses. Good vegetation but not many trees. Then to Rio Galo where there is a small motel near the beach, fair vegetation and