474 SMITH. 



certain special areas likely to prove of economic interest; (3) topographic 

 route sketching, and (4) securing a knowledge of the work of the 

 prospectors in the field. 



The party consisted of Warren D. Smith, geologist in charge; Maurice 

 Goodman, mining engineer; Harry M. Ickis, topographer; Eobert N. 

 Clark, assistant; as well as Lieutenant Charles S. Caffery, United States 

 Army, in charge of the military escort. The journey was only made 

 possible by the assistance of the latter and our thanks are due to General 

 Tasker H. Bliss, governor of the Moro Province, and to Lieutenant 

 Caffery for their cordial assistance. 



The map at the beginning of this paper shows the position of Min- 

 danao and the Sulu group with relation to the remainder of the Archi- 

 pelago. Eoughly, these islands lie between the parallels 5° and 10'' 

 north latitude and between 119° and 127° east longitude. The route of 

 the party is indicated by the heavy line. 



The work was divided as follows : That on the Zamboanga Peninsula and the 

 Sulu group was done by W. D. Smith accompanied by Lieutenant Charles S. 

 Caffery: the vicinity of Cagayan and Iligan, Misamis Province, was investigated 

 by H. M. Ickis, assisted by E. N. Clark; W. D. Smith and H. M. Ickis, accom- 

 panied by Lieutenant Caffery and an escort, surveyed from Camp Overton through 

 the Lanao Lake country to Cotabato and from Cotabato to Davao; the ascent 

 of Mount Apo was made by W. D. Smth, Maurice Goodman, and H. M. Ickis ; 

 Maurice Goodman and H. M. Ickis Avent from Davao up the Tagum and Sahug 

 Rivers to the headwaters of the Agusan and thence to Talacogon. Maurice 

 Goodman then proceeded to Surigao and Placer, while H. M. Ickis made a recon- 

 naissance to San Jos6 de Bislig and back to Talacogon. 



II. PREVIOUS WOEK OF A GEOGRAPHICAL OR GEOLOGIC NATURE IN 



JIINDANAO. 



No attempt will be made to review the work of all the men who have 

 undertaken expeditions through the southern islands of the Philippine 

 Archipelago. I shall confine my attention to those who have contributed 

 in a marked degree to our loiowledge of their geology and geography. 



The first map of Mindanao Avhich is at all accurate was made by the Jesuit 

 Fathers. Of course, this map is based on little or no triangulation, but when 

 the size, nature of the country, and state of the natives are considered the work 

 reflects great credit upon those who did it. 



Since the American occupation the United States Army has done practically 

 all the mapping which has been accomplished in Mindanao. The work of this 

 organization has been excellent. Besides making route maps of all the country 

 traversed in the course of its expeditions, it has begun a progressive military 

 map which shows the topography by contours, based on triangulation. This will, 

 when completed, be by far the most accurate work done over so large an area by 

 any organization in these Islands. 



The United States Coast and Geodetic Survey is now engaged in surveying 

 the coasts of the southern islands. 



