A GLASS IN THE POCKET 
IS WORTH TWO AT HOME 
VEST POCKET < 
5 Power INOCULARS 7 Power 
$30 Ga © 535 
5ounces | gece we 6 ounces 
Adjustable to strength of each eye and to distance 
between the eyes. Once focused, focused for Lifeand 
for All Distances 20 feet, 20 yards, or 20 miles! 
Prisms imbedded in solid composition frame cannot 
possibly shake loose. 
Price includes soft pouch or shoulder strap case. 
On my trip to the Amazon I found this little glass answers 
all the needs of the field naturalists.— 
Jos. BEQUAERT 
(Harvard School of Tropical Medicine) 
A Pigmy in Size, a Mammoth in Action.— 
Louis A. Furrtss 
MIRAKEL MAGNASCOPE—$2.50 
Attachment lens converts either Mirakel Binocular 
into a 20-Power microscope, with wide, perfectly flat, 
color-free field. Distance from attached lens to object 
viewed is 214 inches, allowing unobstructed illumina- 
tion. 
Strap case with belt and lens pocket attachment 50c extra. 
The additional lens furnishes a magnifier of remarkable 
field and distinctness.— 
K. B. FROTHINGHAM 
Appalachian Forest Experiment Station 
For Sale by the Illinois Audubon Society 

K. R. DONNELLEY & SONS CO , CHICAGO 
