ADMINISTRATIVE REPORT XIIL 
which prevented active work for a period of about three 
months. 
In July, August, and September Dr J. Walter Fewkes 
was occupied in the preparation of the text and illustrations 
of an account of a reconnoissance made in Porto Rico 
during May and June of the previous fiscal year. This 
report, which was intended to be a résumé of what is 
known of the prehistoric inhabitants of Porto Rico, was 
finished in October and placed in the hands of the Acting 
Director, who transmitted it to the Public Printer as 
Bulletin 28. Considerable time in these months was 
further given by Doctor Fewkes to correcting proofs 
and arranging the plates of his memoir on a series of 
native pictures of Hopi katcinas, or ancestor gods, for 
the Twenty-first Annual Report of the Bureau. Doctor 
Fewkes left Washington for a second expedition to 
the West Indies in the middle of November, remaining 
there more than five months, and visiting the islands of 
Porto Rico and Santo Domingo. The collection of pre- 
historic objects made on this trip numbers over 1,000 
specimens, 110 of which were obtained by purchase 
in Santo Domingo, the remainder by exploration and 
purchase in Porto Rico. Not only is this collection 
numerically the largest which has been brought to the 
Smithsonian Institution from Porto Rico and Santo 
Domingo at any one time, but it is also one of the most 
significant on account of its wealth in typical forms pre- 
viously unrepresented in the Museum. 
Doctor Fewkes was able to determine by excavations 
that the inclosures surrounded by aligned stones and called 
by the Spaniards juegos de bola were made by the aborigines 
of the island for ceremonial dance places and that neigh - 
boring mounds are prehistoric cemeteries. The deter- 
mination of the burial places of the prehistoric Porto 
Ricans and their discovery in numbers are believed to 
be the most important results of Doctor Fewkes’s field 
work in Porto Rico. With this information to guide 
him, the archeologist will have little difficulty in the 
