Tur Microscope. 65 
THE FROGS. 
| wrote to a friend asking if he could procure a frog for me to 
use at our third annual soiree, as I wished to show the circu- 
lation of blood in the foot. The frogs came, and with them the 
following reply, which is too good to be lost.—Eb. 
Victorious at last! Too late, though, I guess, 
Yet I’ll forward the trophies to-day by express ; 
May they be to your classes, specimens neat, 
In showing, in fact, circulation complete. 
One question I’ll ask in closing my tale, 
If you’re able to answer, please do so by mail ; 
Does the microscope tell, with all its big show, 
How these little Rance from tadpoles do grow ? 
In dropping their tails and putting out feet, 
In changing from black to colors so neat ? 
Please answer this letter if ever you can, 
Tl read it to Arthur, he’ll then be a man. D; P:. Ss; 
= 
Editorial Department, 
Gas 
OUR NEW PUBLISHERS. 
OR three years this journal has been issued from the pub- 
lishing house of Geo. S. Davis, of Detroit. Now that we 
appear once a month, it was found impossible to have the print- 
ing done so far from the editorial rooms. It has been placed, 
therefore, in the hands of the Courier publishing establishment, 
of this city. 
Although Mr. Davis is at the head of an immense mercan- 
tile business, and is largely responsible for its financial success, 
yet he has always exhibited the liveliest interest in purely sci- 
entific matters. He has been most liberal to fully compensate 
those whom he has engaged to pursue original inquiries, and 
thus has been the cause of placing on record many valu- 
able results. As the publisher of our books he has been more 
ready to make great outlays than we were willing to accept. 
He has just made us the liberal offer—which has been accepted 
3 
