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the collections at Coamo Springs and studies on Agaves and of 
the beautiful flowering tree Phlebotaenia Cowellii, endemic in 
Porto Rico, we travelled across the island to San Juan on March 
22. 
e final excursion of the expedition was made on March 2 
when we visited the sandy plain at Sabana Abajo, near Caroling, 
where the large rose-pink Hibiscus was beautifully in bloom, its 
guidance of Mr. Easterling, of the Loiza School; a large cavern, 
occupying nearly the whole of one of these little hills, its rocks 
containing many fossils, will be of especial interest to the geolo- 
gists of the Survey. During our coastal work, and to some 
extent inland, geological specimens were collected and notes 
taken for the studies of Professor Kemp and Berkey; favorable 
localities for the collection of marine invertebrates were noted 
for the information of Professor Crampton other zoologists 
of the Survey, and considerable collections 7 land snails were 
made for the American um of Natur: istory. 
Both Mr. Bri d owell carried cameras, and tl 
a r. 
many photographs were obtained of plants, landscapes and ae 
features. 
The expedition was accomplished without either accident or 
serious inconvenience, and its scientific results will be important. 
Respectfully submitted, 
L. Britton, 
Director-in-Chief. 
