606 The American Naturalist. [June, 
Applications should be made, at the earliest convenient date to, Pro- 
fessor H. C. Bumpus (until June 1), Brown University, Providence, 
R. I.; June 1-September 1, Wood’s Hole, Mass. 
The laboratory work in botany will be restricted to the study of the 
structure and development of types of the various orders of the crypto- 
gamous plants. Especial attention will be given to the study of the 
various species of marine Algæ, which occur so abundantly in the 
waters about Wood’s Hole, and students desiring to give their entire 
attention to these plants will be encouraged to do so. The Fungi and 
higher Cryptogams will receive less attention than the Algæ, but will 
be studied in a few types. Lectures will accompany the laboratory 
work. The course may be outlined somewhat as follows: 
First week: Cyanophycee—Lyngbya, Calothrix, Rivularia, Sti- 
gonema, Tolypothrix, Anabzena 
Second week: Ghlimphy an binay, Ulva, Enteromorpha, 
Chætomorpha, Bryopsis, Vaucheria, Œdogonium. 
Phæophyceæ--Ectocarpus, Mesogloia, Leathesia, Laminaria, Fucus, 
Third week: Rhod Batrachosp , Nemalion, Calli- 
thamnion, ne Roubican. 
Fourth week: Phycomycetes—Mucor, Sporodinia, Peronospora, 
Cystopus, Achlya. ; 
Uredinei—Æcidium, Uredo, Puccinia, Uromyces. 
Fifth week : Basidiomycetes—Agaricus, Lycoperdon. 
Ascomycetes—Microsphæra, Sordaria, Peziza, Physcia. 
Sixth week: Muscineæ— Riccia, Madotheca, Marchantia, Mnium, 
Tetraphis, Hypnum. 
Filicineæ— Dicksonia, Adiantum, Equisetam, Lycopodium, Marsilia, 
Selaginella. 
The tuition for students in the regular course of laboratory work 
and lectures is $40.00, payable in advance; for students engaged in 
investigation the tuition is $50.00. 
For the course in embryology, the introductory courses in anatomy, 
or their equivalent, are considered as prerequisites. The course is de- 
signed as a preparation for beginning investigation. The aim will 
therefore be, not only to master the details of development, but also to 
acquire a thorough knowledge of the method of preparing surface- 
views, imbedding in paraffin and celloidin, staining and mounting; 
drawing, reconstructing, modelling, ete. The study will be mainly 
confined to the fish egg as the best type for elucidating vertebrate 
development ; but the eggs of amphibia and other vertebrates, as well 
