IXPEX. 29 



Tage. 



Palenque, presence of oaks 19 



ruins 13 



Palms. Acrocomia 12 



Attalea 12-13 



Chainaedorea 13 



cocoanut 15 



localized distribution 13 



showing denudation 13 



undergrowth, absence indication of previous denudation 13 



Panzos. former existence of pines 2o 



Pines at different elevations T 



distribution determined by clearing of land 19-20 



previous, shown by buried roots 20-21 



in reforested areas 12 



killed by fire 20 



resistant to fire 19-20 



Pittier. H.. statements 10.11,19 



Plates, description 20 



Polochic Valley, finding of pine roots 20 



Pottery, decay IT 



prehistoric IT 



Qnezaltenango region, description 10 



Quiche region, description 10, 12 



Rabinal region, ruins 21 



Rainfall and denudation 15—16 



relation to forest growth 21-22 



Reforestation S, 9. 11-14. 16-17, 21-22. 23 



rocky places 21-22 



time required 14-15 



Rio Dulce, Guatemala, absence of rubber trees and palms 12 



Roots, buried, show former extension of pines 20-21 



Rubber trees, absence in eastern Guatemala 12 



Ruins, Alta Vera Paz 16 



Copan 13 



Ocosingo 14 



Palenque 13 



Rabinal, Guatemala 21 



Senahu-Cahabon district 16 



Tanina 14 



Salania Valley, references 8, 16 



walled fields 21 



San Pedro Carcha, corn culture '.». 10 



Santo Tomas region, terraces 18 



Season, dry, lengthened 15 



Senahu, finding of pine roots 20 



ruins 16 



Sheep grazing and erosion 12 



Skeletons with pottery IT 



Storage of water deficient on slopes 19 



Summary of bulletin 22-23 



Tanina, ruins 14 



Terrace system of corn culture 10 



Terraces between Santo Tomas and Jacaltenango IT-IS 



evidence of prehistoric agriculture 17-1S 



145 



