26 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 95 
Gregorio Aguilar Sibaja, Comandante de la Plaza in Liberia, I wish to 
express my sincere appreciation for their courtesy and assistance in 
furthering my studies in the field. In San José, Modesto Martinez 
was most kind to me. Carlos Aguilar, at that time in charge of the 
zoological collections in the Museo Nacional, worked as my assistant 
during the entire period of my stay in Guanacaste. One of the 
pleasant memories of my travels in Latin America is my stay in Li- 
beria and at the hospitable Hacienda Santa Maria. Always was I 
among companions who were interested in helping me and in making 
me feel completely at home in their attractive and friendly land. 
ITINERARY 
Early in the morning of October 12, 1940, I landed in Puerto Limén 
from the United Fruit Co.’s steamship Jamaica, where through the 
courtesy of the government officials the formalities of entry into the 
country were quickly completed, and I was greeted in courteous and 
friendly fashion as the guest of the Government of Costa Rica. Ac- 
companied by Dr. Juvenal Valerio Rodriguez, Director of the Museo 
Nacional, who had come to meet me, and with other officials who had 
arrived on the same ship, I boarded a special train which carried us up 
the beautiful valley of the Rio Reventazén to the highlands of the 
Meseta Central, and finally to the capital city of San José. A week 
here passed rapidly and pleasantly, occupied in meeting scientists of 
the country, in visits to government offices, and in work at the Museo 
Nacional on its interesting and valuable collections. On October 16, 
in company with Rémulo Valerio Rodriguez and Alfonso Segura 
Paguaga, I went in a car furnished by the government to San Ramén, 
continuing from there to examine a vertebrate fossil deposit located 
along the Quebrada Ramirez on the Finca Piedades of Don Gabriel 
Barrantes. 
On the morning of October 19, in company with Dr. Valerio and 
Carlos Aguilar of the Museo Nacional, I left San José, by Taca plane 
for Guanacaste. At the take-off the wind was blowing and the air 
was cold, but a half hour later we came down into the long, narrow 
landing field at Puntarenas on the Gulf of Nicoya into true tropical 
heat. Beyond, after a half-hour pause, the plane traveled high above 
mangrove swamps bordering the gulf to the mouth of the Rio Tempis- 
que, crossed the wide delta of that river, and continued over the Nicoya 
Peninsula. Here sharp ridges govered with scrub and low forest rose 
a thousand feet or more, with small, level valleys lying between. 
After a brief stop in Santa Cruz we returned to the southeast over 
hilly country to Nicoya and then continued north again above the 
town of Filadelphia to Paso Tempisque. As at the two previous 
stops, the airfield was long, rather narrow, and grown with grass, with 
