﻿304 BOTANICAL GAZETTE [april 



The Ohio State University has organized a lake laboratory, located at 

 Sandusky Bay. A new building capable of accommodating 100 students and 

 investigators will be erected in time for the summer session, which commences 

 June 29 and closes August 7. The laboratory will be open longer to those 

 who desire to continue their work. Twenty-four wxre enrolled last summer. 

 The location offers varied conditions of open lake, bay, marsh, river, native 

 forest, sandy beach, and rocky islands. The laboratory is supplied with 

 boats, dredges, seines, etc. The extensive fishing industry of Sandusky, and 

 the U. S. Fish Hatchery at Put-in-Bay give additional advantages. The botan- 

 ical staff includes Professor W, A, Kellerman, Columbus, Ohio (to whom 

 inquiries may be addressed), Professor J. H. Schaffner, and Mr. E. O. Jen- 

 nings. 



The sixteenth session of the Marine Biological Laboratory at Woods 



Hole will extend from July i to August 12, 1903. The botanical staff, 

 headed by Professor Bradley M. Davis, comprises nine members, repre- 

 senting seven institutions. There will be given an instructional course of 

 lectures on thallophytes, with laboratory work ; a course on general physi- 

 ology for investigators; a series on plant hybridization and breeding; and a 

 series of general lectures by members of the staff, investigators, and guests. 

 The advantages of Woods Hole for botanical study are too well known to 

 need restatement. The Carnegie Institution controls a number of research 

 tables, which will be assigned to suitable applicants, and the laboratory pro- 

 vides others. All are free of expense. Information may be obtained from 

 Professor B. M. Davis, The University of Chicago. 



The Michigan Academy of Science met at Ann Arbor, March 26-28. 

 Professor F. C. Newcombe was vice-president of the section of botany, whose 

 program was as follows : The effect of dilute and concentrated sea water on 

 Cladophora, S. O, Mast; The osmotic relations of algae to their environ- 

 ment, Howard S. Reed ; Protoplasmic movement in Elodea canadensis, 

 Rena B. Raymond; Structural variations of Chara, Ellen B. Bach; The 

 latent period in traumatropism, George P. Burns ; Extent of the sensory 

 zone for heliotropism of terrestrial roots, Darrell H. Davis ; Final 

 demonstrations of thigmotropism in terrestrial roots, Frederick. C. New- 

 combe ; On the absorption of water by foliage leaves, including a history of 



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the subject, J. B. Dandeno ; Notes on Michigan fungi, including some new 

 species of Hymenomycetes, B. O. Longyear ; The lichen genus Ph3'scia, E. E. 

 Bogue ; Some interesting hybrid oaks in the vicinity of Ann Arbor, Charles 

 A. Davis; Preliminary account of the distribution of Querctis imbricaria m 

 Washtenaw County, Charles A. Davis ; The geographic distribution of 

 bog plants, E, N. Transeau ; The succession of plant societies in Ypsilanti 

 and Augusta townships of Washtenaw county, Forest B. H. Brown ; The 

 new Michigan oak, Quercus Alexatideri Britt.; its characteristics and dis- 

 tribution, S. Alexander. 



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