15 
versity, were awarded research scholarships for the month of 
January, to aid them in their investigations of the North American 
species of rusts (Uredinales), a group of parasitic fungi very 
destructive to cultivated plants 
The orchids are at their best during January and February. 
The large additions of rare and attractive species during the past 
year make the collection one of great interest and beauty. 
Some Recent Visitors. — Professor W. L. Bray, of Syracuse 
University ; Professor A. W. Evans, of Yale University ; Dr. C. 
F. Millspaugh, of the Field Museum of Natural History, Chi- 
cago; Professor A. H. Graves, of the Yale Forestry School ; 
Professor John F. Cowell, Director of the Buffalo Botanic 
arden; and Mr. Stewardson Brown, of the Academy of Natural 
Gaences: "Philadel phia. 
Meteorology for December.— The total precipitation for the 
month was 4.42 + inches. Maximum temperatures were recorded 
of 57° on the 8th, 58° on the roth, 55° on the 23d, and 53° on 
the 28th ; also minimum temperatures of 18° on the 5th, 23° on 
the 13th, 22° on the 20th, and 26.5° on the 25th and 27th. 
The maximum temperature recorded for the year was 93”, 
occurring on July 8, 18, and 25; the minimum temperature for 
the year was — 2°, on February 6; the mean temperature for 
the year, therefore, was 45.5°. The total precipitation recorded 
for the year 1907 was 47.01 + inches. The first fall frosts 
occurred during the first week in October. 
ACCESSIONS. 
LIBRARY ACCESSIONS FROM NOVEMBER 1 TO DECEMBER 31, 1907. 
ARTHUR, JosepH CHARLES & MacDoucaL, DANIEL TREMBLY. ing plants 
and ee properties. New cL 1898. a by the tase a Columbia 
University. ) 
RITTON, NATHANIEL LorD. <A/anzal of the Flora of the Northern States and 
thor, 
Canada. Ed. 2 [second impression]. ew York, 1907. (Given by the author. ) 
ELcoop, GEORGE S talian gardens. ondon, 1907. 
EIDENHAIN, MARTIN. Plasma und Zelle. Erste Abteilung: Allgemeine 
Anatomie der lebendigen ie ief. 1. Jena, 1907. 
z, CONRAD. Die Algenflora der Dansiger Bucht. Danzig, 1907. 
Loupon, JOHN CLAUDIUS. pe encyclopaedia of agriculture. Ed. 4. London, 
1839. (Given by the Trustees of Columbia University. } 
