626 
These samples were all taken according to the most approved methods 
adopted by mining engineers and the strictest impartiality and caution 
were observed, 
From a limited examination, the best prospects at present are seen 
to be the vein outcropping at the point from which sample No. 3, 
Table II], was taken and the thin but rich streak where No. 6, Table 
III, was secured. Both of these are, in the opinion of the writer, well 
worth further development work. The ledge which yielded No. 3, from 
its peculiar character, trace of values and width, might well be given 
attention. 
The gold ore is in part free milling, as some of it was crushed and 
panned, but for the greater part, it is believed, it will prove to be 
refractory. 
Claims and titles.—In this district there are twenty-one claims staked 
out at the present time, although, to the writer’s knowledge, no patents 
have been issued. Because nothing beyond prospecting and assessment 
work is being carried on in this place, an existing plat of the claims is 
not published at this time; the latter shows the courses of the various 
veins, but owing to the exceedingly crude and in some cases Inaccurate 
compass surveys it would only be misleading. 
This portion of the discussion will be concluded with the statement that 
the work so far done on the mineral resources of the Loboo region 1s 
too meager to allow us either to condemn it or to be carried away 
with an exaggerated enthusiasm. The region, we firmly believe, merits 
further exploration, but beyond that we do not presume to advise.’ 
PALEONTOLOGY. 
INTRODUCTION. 
Although only a small number of fossils are to be described in this 
paper, nevertheless this is the first instance in which they have been 
encountered in this district. ‘They have, of themselves, a peculiar 
interest and also a bearing on certain economic questions, and_ finally, 
their affinities with forms from neighboring parts of the Malay region 
warrant their full discussion. 
To the writer’s knowledge, no fossils have been figured or describea 
from this portion of Luzon. A knowledge of them is absolutely essen- 
tial for the complete and proper understanding of the relations of the 
stratified deposits and of the latter to the igneous rocks. At present, 
any economically valuable mineral deposits which may occur are likely 
in the first instance to come from the igneous basement, but occurrences, 
small to be sure, of lead and gypsum in the sedimentary formations 
appear to promise future values from these higher horizons and in the 
: Since writing the above, specimens of very good looking copper ore (chaleocite) , 
galena, and stibnite have been brought in from the Loboo Mountains near Batan- 
gas city. The country is, to say the least, well mineralized. 
