XVI 
THE GUIDE TO NATURE— ADVERTISEMENTS 
BOBBINK & ATKINS 
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RUTHERFORD 
Established 1868 
NEW JERSEY 
Mrs. Dow’s School, Briarcliff Manor, 
New York. 
November 5, 1921. 
Dr. Edward F. Bigelow, 
Sound Beach, Connecticut. 
My dear Dr. Bigelow: 
In your visits of the last three years 
to Briarcliff I feel that you have done 
much through your excursions with the 
girls, your walks and your lectures 
with the lantern slides to develop in 
them a love of nature and the wonders 
of outdoor life, but your lecture last 
week with the microscope projections 
quite transcended anything which you 
have done for us heretofore. In fact it 
seems to me one of the most important 
scientific achievements that has come 
under my notice. 
If you can reveal the secrets of the 
microscope to large audiences of young 
people as you did for us you will cer- 
tainly be making a great contribution 
to scientific teaching. I wish you all 
success in developing your work along 
this line ! 
Yours very sincerely, 
(Signed) Edith Cooper Hartman. 
WYNNE’S INFALLIBLE 
HUNTER METER 
The Wynne’s Infallible Hunter Meter 
has been specially designed to attain the 
\ maximum of simplicity, convenience and 
efficiency, with a minimum of diameter, 
and thickness of case — the case being 
only one-quarter of an inch in thickness. 
It is beautifully made in the best Solid 
Nickel and opens automatically by pres- 
sure of the small knob on the pendant. 
When ordering, please specify which 
style of scale is desired. 
Hunter Meter - - - $3.50 
Autochrome Scale and Instruction 
Book ----- .50 
American Agents: 
GEORGE MURPHY, Inc. 
57 EAST NINTH STREET, NEW YORK 
Manufacturers, Importers and Dealers in Photog- 
raphers’ Materials of Every Description 
