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distribution was found between Chosica and Matucana, at ar 
altitude of 850 to 2,370 meters. 
rom Lima we went by steamer to Mollendo, Peru, and from 
there by train to Arequipa, which we made our base for nearly 
six weeks. Arequipa is the center of a most wonderful display 
of cacti. We made frequent excursions beth above and below 
the city. From Arequipa we also went inland as far as La Paz, 
Bolivia, from whence we made trips to Comanche and Oruro, 
Bolivia. From Arequipa we made another trip to Cuzco, Peru, 
stopping en route at Juliaca. 
After finishing our work in southern Peru, we went to Val- 
paraiso, Chile, and then to Santiago, where considerable time 
was spent in studying the cactus types of the late Rudolph 
Philippi, which are now deposited in the Museo Nacional de 
ile. m Santiago a long excursion was made up along the 
a Railway of Chile, and collections were made at 
Los Vilos, Choapa, Illapel, Coquimbo, La Serena, and Copiapo. 
Professor Francisco Fuentes was detailed by the Chilean Govern- 
his was made chiefly for the purpose of collecting at the type 
locality the very rare species known as Cereus castaneus. e 
venerable Director of the Jardin Botanico, Mr. Johannes Sdh- 
rens, was delegated by his Government to accompany us on 
_ tri 
n completion of our work in central Chile, we spent 8 days 
at eee Chile, obtaining a number of interesting cacti 
on the hills above the town. Some very Jeune tee 
from near the beach were gathered, one of 
species. A trip was made from here oo the railway through 
the nitrate pampas as far as Calam 
Leaving Antofagasta, one day was spent at Iquique, where 
specimens were obtained of Cereus iquiquensis at the type locality. 
Our departure from Iquique closed our collecting work, and 
we returned to the United States, arriving in Washington Novem- 
ber 28, 1914, after an absence of almost six months 
J. N. Rose 
