\ 
508 The American Naturalist. [May, 
tions, criticism, or extended instruction in technique, may occupy 
tables in the general laboratory for investigators, paying for the privi- 
lege a fee of fifty dollars. The number of such tables is limited to 
ten. Applicants for them should state precisely what they have done 
in preparation for original work. For the completion of any.consid- 
erable piece of investigation, beginners usually require from one to 
three full years. It is not expected, therefore, that the holders of 
these tables will finish their work in a single season. The aim is rather 
to make a secure beginning, which will lead to good results if followed 
up between sessions and renewed, if need be, for several successive 
ears. 
The laboratory for teachers and students will be opened on Wednes 
day, July 8th, for regular courses of seven. weeks in zoology, botany, 
and microscopical technique. The number admitted to this depart- 
ment will be limited to thirty, and preference will be given to teachers 
and others already qualified. By permission of the director, students 
may begin their individual work as early as June 15, without extra 
charge, but the regular courses of instruction will not begin before 
July 8th. 
Rooms accommodating two persons may be obtained near the labor- 
atory, at prices varying from $2.00 to $4.00 a week, and board from 
$4.50 to $6.00. By special arrangement, board will be supplied to 
members at The Homestead at $5.00 a week. 
Applications for places in either department should be addressed to 
Miss A. D. Phillips, secretary, 23 Marlborough Street, Boston. 
Laboratory of Marine Biology of the University of Penn-. 
sylvania.—The University of Pennsylvania, though the liberality of 
Mr. Chas. K. Landis, will be enabled to occupy a modest laboratory 
building the coming season at Sea Isle City, New Jersey. A building 
80 x 24 feet will be provided with places for advanced workers and 
students, and with an equipment of aquaria for the purposes of biologi- 
cal study. Larger aquaria will be operated for the purpose of display- 
ing to the public the character of the living marine forms found in the 
immediate vicinity. It is provided that a biological director and staff 
shall control the workings of the laboratory. While popular or ele- 
mentary instruction will be given, it is intended that the place shall ve 
mainly a laboratory of research. With this object in view, it is le 
tended, as soon as possible, to throw open its facilities to all biologists 
of repute, American as well as foreign. It is hoped that the establish- 
ment may be got under way by the first of July, 1891, at the latest. 
