THE GUIDE TO NATURE— ADVERTISEMENTS 
XV 
TRADE. 
(rayolA 
An Artists' Drawing Crayon 
The box pictured contains 
24 crayons of the very best 
quality. For artists and 
Students of Nature, to be 
used for 
sketching and 
general color 
work. 
“Crayola” is 
put up in all de- 
sirable styles 
of packing, 6 
to 24 colors in 
a box. 
Color charts and 
catalog on request. 
BIN NET cc 
SMITH CO., 
81 Fulton St., 
New York. 
for 
high-speed. 
photography 
GOERZ “Dogmar” 
Anastigmat F: 4.5 
Extreme speed when you want it, but speed with- 
out the danger of flat or fogged negatives which 
has been the great drawback of high speed lenses. 
The “Dogmar” gives brilliant negatives at all 
speeds. 
And then for landscape views and artistic por- 
traiture out of doors, the two halves of the lens 
with the smaller stops offer a wide use. 
The Dogmar is very compact and can be used to 
advantage in hand or reflecting cameras. 
Ask your dealer to show you the 
“Dogmar.” If he hasn’t one, 
write us. 
C. P. Goerz American Optical Company 
317 G EAST 34TH STREET, NEW YORK CITY. 
The statement often made that Mt. 
Mitchell in North Carolina is “the high- 
est peak east of the Rockies” is really 
quite without foundation. Mt. Mitchell 
is 6,711 feet high and therefore sur- 
passes Mt. Washington by more than 
four hundred feet. But the highest sum- 
mit east of the Rockies is really Harney 
Peak of the Black Hills in South Da- 
kota, which the United States Geologi- 
cal Survey makes to be 7,242 above the 
sea. Moreover it is by no means cer- 
tain that Mt. Mitchell is even the h igh- 
est peak east of the Mississippi. There 
is another in the same region, Mt. Le 
Conte, on the line between North Caro- 
lina and Tennessee, inaccessible and 
rarely visited, which is suspected of be- 
ing a few feet higher than Mt. Mitchell. 
The precise facts have not been offi- 
cially determined. 
Dr. Hornaday suggests that hunting 
licenses shall be granted to individual 
gunners only once in two years, so that 
while there will be shooting each year, 
only half as many persons will be out 
at once. 
T tiE BRYOLOGIST — The only magazine in the Eaf- 
lish language devoted wholly to articles dealing with 
Mosses, Hepatics, and Lichens. Of interest to be- 
ginners and advanced students alike. Bimonthly, pub- 
lished by the Sullivant Moss Society, an organization 
for mutual help in moss study. Special curators to 
assist beginners. Membership fee, $1.50 per year, in- 
cluding the Bryoloeist; subscription alone, $1.25; Cana- 
dian postage 10 cents extra. Address Edward B. Cham- 
berlain. 18 West 89tb Street, New York City. 
AQUATIC LIFE monthly magazine will 
^ increase your enjoyment 
of the life in nature’s streams and in your home 
aquarium. Written by scientists to entertain all 
nature lovers who like to paddle in water and 
study its many forms of life. A journal of popu- 
lar aquatic biology, not merely a fish fanciers’ mag- 
azine. Specimen copy free on request. Subscrip- 
tion, $1.25 per year. Joseph E. Bausman, Pub- 
lisher, 542 East Girard Avenue, Philadelphia. 
THE 
AMERICAN MICROSCOPICAL SOCIETY 
(Founded in 1878) 
Publishes Its TRANSACTIONS as a 
Quarterly Journal of Microscopic Research. 
For information, write to 
P. S. WELCH, Secretary 
ANN ARBOR. MICHIGAN 
Best wishes for your further success 
with this bright entertaining and most 
instructive paper. — John M. Sheridan, 
Brooklyn. New York. 
