J. Playfair McMurrich, A.M., Ph.D., Docent in Animal Morpho- 
logy. 
C. F. Hodge, A.B., Ph.D., fellow in Neurology. 
H. C. Bumpus, A.M., fellow in Morphology. 
F. Tuckerman, A.B., M.D., fellow in Anatomy. 
Other annual appointments are under consideration, and scholars, 
be received later. 
To the Editor of the American Naturalist : 
Dear Sir : — I beg to announce that the Imperial Royal Agricul- 
tural Society of Vienna, will hold there in the year 1890 a General 
Forestal and Agricultural Exhibition. 
It will take place in the Rotunda and the adjoining park grounds of 
the Prater, and will last from the fifteenth of May to the middle of 
October, perhaps to the first of November. The aim is to exhibit a 
complete picture of the present standing of all branches relating to 
agricultural and forestal efficiency. 
The management of the undertaking is in the hands of a general 
committee especially selected for the purpose. The programme issued 
by this committee contains the following divisions intended for inter- 
national participation. 
Machines and implements for agriculture and forestry and their 
industries ; for horticulture, orcharding, vinticulture, and hop culture ; 
for the breeding of poultry and bees, and the keeping of silk-worms ; 
for dogs, and the art of hunting and fishing. 
Auxiliary means employed for farming, viz. : artificial manure, food 
produced for the market, of veterinary products, etc. 
(a.) Of agricultural and forestal works of melioration and engin 
{b.') Of the system of agricultural and forestal 
perimenting, literature included. 
(<:.) Of the use and sale of the waste matter. 
