530 THE AMERICAN NATURALIST.  [Vor. XXXIV. 
J. H. Schaffner, botany. The school will open on July 2 and will 
continue for eight weeks. Correspondence should be addressed to 
Professor Herbert Osborn, Ohio State University, Columbus, Ohio. 
The Marine Biological Laboratory at Woods Holl announces a 
special course in nature study designed to meet the needs of teachers. 
The course will commence on July 5 and extend over a period of six 
weeks. The courses of instruction in botany will include crypto- 
gamic botany by Dr. Davis and Mr. Moore, plant physiology by 
Dr. R. H. True, plant cytology and micro-technique by Dr. Davis. 
Correspondence should be addressed to Professor C. O. Whitman, 
University of Chicago, or to Professor Ulric Dahlgren, Princeton 
University. | 
We are indebted to the May issue of the Review of Reviews for 
the following announcements: 
Mr. Albert L. Arey announces the eleventh season of his natural- 
science camp for boys at Canandaigua, N. Y. Instruction is given 
in the subjects of biology, entomology, taxidermy, and photography. 
The Rhode Island Summer School for Nature Study will hold its 
second session on July 5-20, at Kingston, R. I. Tuition is free to 
teachers in the schools of Rhode Island. 
Beloit College, Wisconsin, will hold a summer school on Madeline 
Island, Lake Superior, from July 26 to August 3 
A school of applied agriculture and de ont m be established 
near New York City, to open in September for study and practical 
training. Students will have the use of the laboratories and the 
extensive collection of plants in the museum, the conservatories, and 
upon the grounds of the New York Botanical Garden. The work 
will be under the direction of Mr. George T. Powell. 
Appointments: Dr. Antonio Baldacci, docent for botany in the 
University of Bologna. — Dr. Alexander Balint, docent for zoólogy 
in the University of Klausenburg. — Dr. C. R. Bardeen, professor of 
anatomy in the University of California. — Dr. Llewellys Barker, of 
Johns Hopkins, professor of anatomy and neurology in the Univer- 
sity of Chicago. — Dr. A. N. Berlese, professor of botany in the 
University of Sassari, Sardinia. — Dr. Albrecht Bethe, docent for 
physiology in the University of Strassburg. — Dr. H. Bóckh, pro- 
fessor of mineralogy and paleontology in the Akademie in Schemnitz, 
Hungary.— Dr. Hermann Braus, professor extraordinary of anat 
omy in the University of Würzburg. — Dr. O. Brefeld, professor of 
