52 
In spite of the large number of species collected by Purdie at 
Santa Marta, most of which are represented in Mr. Smith’s sets, 
and of the earlier extensive collections of Karsten, the number 
of new species will be probably 20 per cent. of the 2,500 species, 
There are new genera in Rubiaceae, Composite, Violaceae and 
Olacaceae 
Dr. Ru dehy studied, at the same time, such of the Bolivian col- 
lections of Mr. R. S. Williams, on the Conway meee as 
were not determinable at New York, and found most of t 
undescribed 
The total precipitation in the Garden during February, 1905, 
amounted to 2.76 inches. Maximum temperatures of 31° on the 
Ist, 41° on the 13th, 37° on the ia and 51°'on the 21st were 
aba — minima of —1.5° on the 4th, 6° on the 8th, 
14th, 5° on the 15th, 2° on the 16th, 8° on the 
1gth aad ae on the 26th. 
Dr. D acDougal started upon an expedition to the 
southwestern deserts on the roth. It is planned to descend the 
Colorado river from Mellen to Yuma, a distance of over three 
hundred miles, in a small boat equipped for collecting cacti. At 
Yuma a small party will be organized and the trip will be con- 
tinued to the Gulf of California. The series of observations on 
desert conditions and desert vegetation a some time since 
will be continued, and living material of the cacti and other 
living forms will be obtained for the Garden. Mr. G. C. Copp 
of New York will accompany the expedition. Permission has 
also been given to Mr. E. A. Goldman of the Biological reed 
of the U. S. Department of Agriculture to accompany the ex- 
pedition. Mr. Goldman will carry out some work in extension 
of the field surveys made by the Department and will collect 
material for a study of the region. 
Dr. Britton accompanied by Mrs. Britton and by Dr. Marshall 
A. Howe, have returned from their expedition to the Bahama 
Islands, with a collection of about ten thousand specimens for 
the herbarium, museum and the conservatories, being much the 
largest amount of material representing the flora of these Islands 
ever yet brought out at one time. Dr. C. F. Millspaugh of the 
