San Jose, Costa Rica (Hotel Garden) 20 July little (or nothing) to report. Worked today in the lab at the UCR cellular & molecular biology department. Lunched w/ Tony Morena, Pedro Leone, the head of the department (name?) -I- Leone. 21 July Our rental VW was broken into last night. Cassette/radio, speakers & outside mirror are gone. After many errands (UCR, gas, Global Rental, Police Sta. [closed for lunch])— we are finally on our way. [illegible] 3 km NNE Las Cañas, Guanacaste Province, Costa Rica 150m 21 July 9am we drove all afternoon, arriving in Los Cañas round 3pm and later finding a suitable trapping locality. Using Genoways as a reference we settled on this site— on the N. side of the road; a patch (unknown area) of 2° growth overstory hardwood (<75 ft tall) & varying amounts of understory. Duke set some 50 traps on in the forest's edge while I set 40 in the forest. He set 60 traps up the road @ 8km NNE Los Cañas in shrub -2° growth. While setting traps I saw 3 howler monkeys (Alouatta p. palliata) – an adult σ and 2 smaller, one clearly a juvenile. They moved off after only several minutes of observation so there's little to say other than that. Duke Rogers also sighted a Poto (Poto flavus) in this same stand of trees.