616 NATURAL HISTORY MISCELLANY. 
Readers” (1864) I state that the bald eagle, ‘‘ with wings nearly closed, 
darts pays into the water for his prey, in the general manner of 
e fis E 
re was an eagle’s nest high up on a large buttonwood (Platanus, 
ignorantly termed sycamore in some SRE on an island in the 
Susquehanna, about ten miles above Col mbia, Pennsylvania, and in 
sight from my father’s house, about a fate istant, where I had abun- 
dropped it before the eagle was near enough to seize it in its fa 
ward the water or the ground: for in the latter case, which was rare, 
I have observed the eagle to turn away without attempting to seek 
the fish on the earth. 
n there are no fish-hawks to depend on, the eagle fishes for 
iatt taking the fish (if I remember rightly) with the feet, and leav- 
ing the water with apparent difficulty, and a good deal of flapping, 
which accords with the habits of the East Indian species. — S. S. HAL- 
DEMAN, Columbia, Pa. 
suse 
MICROSCOPY. 
Ts’ Microscorr.— We call the attention of our readers to 
the lenses are excellent. It is the best and cheapest microscope for 
general use for the physician and beginner in microscopy now in the 
market. 
EEA 
EXCHANGES. 
vr. Hermann Loew, of Meseritz (Posen), ermes is very desirous 
of obtaining fresh and w besten rved specimens of North American 
ra. They are very nece ae the Saai of his work on 
the North American Flies, now oe peeling by the Smithsonian Insti- 
tution. He will send very fine specimens of European Coleoptera to 
any Entomologist who will furnish specimens of Diptera in exchange. 
Packages may be sent through the Smithsonian Institution, Wash- 
ington, D. 6. 
PETTA S 
EXPLORATIONS. 
Mr. W. H. Dall, of the Scientific Corps of the Western Union Tele- 
graph Company, Russian Extension, writes from St. Michaels, R. Am., 
Aug. 14, 1867: “I have travelled in winter, with the ial 
boss to 40° with ons sleds and snow-shoes, about 300 miles; and 
