Journal 14 Feb. 1978. Mr. El Ester, cattle of plant we saw 2 herons, w. luck (? 165?), in tree 100m. away. (Plant man said a gir. trapped by sleeping around fire.) Not muggy dark, dry, just no rain. / Visited Juan Calle, head of local lab, in car. Received worm-like snake he had taken from hill to N. of Cata recently. We discussed woodcutters getting firedwood near Las Dentas. Calle said destroying breeding habits of some side- side. Calle said that in 1952 only about 200 people here; now over one thousand. He had worked at UC Riverside in past, on soil fertility problems. Seems very cooperative. Good solid English. / Two cats out at night. Temp. about 27°C. today. 15 Feb. 1978. Calm, muggy, overcast. One Vangapapa taken in brush south on hill to N. Took in nets + prepared for trip to Pongos & Toloman. Adolfo drove us to Pongos (br. 0930). Much cleared and burned land to S. flat. Many Congo palms, a stand of African oil palms. Many "living fences". Crotalaria frequent + some. Little agate. Chicken woods on hills to N. Corn + Egypt corn (maizilla). Wide grass- ed road. Agrostis green. Rio Calabaz 100 m wide, fast, milky (copper mine upstream?). Pongos a small quiet town / Hopped a small truck full of Kola nuts, including coconut & T., to Toloman (25). Insisted large Ceiba tree. Cargo in pastern. Busy market in T. 1130. walked to river (E+S + of center), when bridge under repair. Crossed 40m. river in canoe (5¢). Tractor w. trailer waiting to haul people; none to Zarcas for an hour, so walked road through 10' corn to Mina del Valle, foot of hills. Now got a ride or side (on sugar cane or many loads). 1 hr. slowly to Pueblo Viejo on Rio Tinajas (40m.). Think some linear stream. Corn, cattle. Many aris. near road. Living fence various spp. incl. ceiba. / Another truck ride. Cross Rio Tinajas (fairly clean). On to gate of finca Los Calvins & El Paraiso,