340 
The Ohio Naturalist. 
[Vol. VIII, No. 6, 
also the Cephalanthus-Comus zone and extending, as well, up the 
sides of adjacent dunes and onto the adjacent xerophytic Sand 
plain. 
Although very successful in competition with the Cephalan- 
thus-Cornus and Rhus hirta Thickpt Formation, it appears pro¬ 
bable that this formation will eventually be succeeded by the 
Ulmus-Acer Forest Formation. The structure of the Ailanthus 
glandulosa Forest Formation, as to the lower layers, is interme¬ 
diate generally between that of the thicket formations that 
have been supplanted and that of the Ulmus-Acer forest. A 
number of the species, such as Campanula americana, belong 
more especially to the latter formation, but the conditions of 
dense shade of the Ailanthus forest seem to have supplied the 
conditions essential for its entrance into this habitat. 
Certain secondary successions are to be seen in several places 
on Cedar Point, as brought about by the agency of man, but these 
were not studied in detail by the writer. One of these successions 
has been brought about by the effort made to have a lawn and 
shrubbery in the vicinity of the buildings of the Pleasure Resort. 
Another secondary succession marked by the appearance of a 
number of ruderal species has been brought about by the throw¬ 
ing aside of sand in connection with the dredging of the artificial 
“ Lagoons. ” 
Carnegie Museum, January 20, 1908. 
THE MURMAN BIOLOGICAL STATION. 
Sergius Morgulis. 
To the observer abroad, in Europe and more especially in 
America, Russia is still vested with clouds of mystery. This is 
true even with regard to the scientific Russia, slightly known in 
other countries, which of course is due primarily to the Russian 
language being familiar only to very few scientists. 
This note is intended to acquaint the reader with a neglected 
scientific institution, of no small rank, and is compiled largely 
from reports kindly placed in my possession by Dr. K. M. 
Derjugin, Curator of the Station. 
Marine Biological Stations are the workshops of biologists, 
and ever since students of nature have abandoned their air-tight 
laboratories, stored up with pickled specimens, and migrated to 
the shores of the open sea, where they came in direct touch with 
an exuberant living world, our science has progressed by 
strides. This “migratory humor” effected also the Russian 
biologists, and the famous embryologist Kovalevsky succeeded 
in founding a Biological Laboratory on the coast of the Black 
