THE GUIDE TO NATURE— ADVERTISEMENTS 
XVI r 
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 charti and 
catalog on request. 
£ INN FT <x 
SMITH CO., 
81 Fulton St., 
New York. 
A NEW ARRIVAL 
GOERZ ROLLFILM TENAX 
(2Va x 314 in.) 
First shipment 
of this LATEST 
model of high 
grade Roll film 
Cameras just in. 
New pleasing 
design, light and 
compact. 
Novel construc- 
tional features for 
easy and accurate 
operation. 
Highest perfec- 
tion of lens and 
shutter equipment, 
offering the choice 
of three high 
grade -Goerz ana- 
stigmat lenses, 
Dtogmar F:4.5 
Dagor F: 6.8 
Tenastigmat F:6.3 
Compur Shutter 
with speed range 
from 1 second to 
1/250 of a second, 
(% actual size.) time and bulb ex- 
posure. 
A smaller model, the GOERZ V. P. ROLL- 
FILM TENAX (l$4x2}4 in.) of much the same 
design as the 2 l /\ x 3*4 in. size has been intro- 
duced on the American market some time ago and 
has met with the greatest favor among camera 
enthusiasts. 
Ask your dealer, he should carry Goere 
Cameras in stock. For further description write to 
C. P. Goerz American Optical Company 
317 G EAST 34TH STREET, NEW YORK CITY. 
Some Noise. 
A sufferer who lives close- to a rail- 
road yard in the suburbs, wrote the fol- 
lowing to the railroad company, com- 
plaining about the racket made by a 
switch engine, according to the Boston 
Globe : 
“Gentlemen : Why is it that your 
switch engine has to ding and dong and 
fizz and spit and clang and bang and 
buzz and hiss and bell and wail and 
pant and rent and howl and yowl and 
grate and grind and puff and bump and 
click and clank and chug and moan and 
hoot and toot and crash and grunt and 
gasp and groan and whistle and wheeze 
and squawk and blow and jar and jerk 
and rasp and jingle and twang and 
clack and rumble and jangle and ring 
and clatter and yelp and howl and hum 
and snarl and puff and growl and 
thump and boom and clash and jolt and 
jostle and shake and screech and snort 
and snarl and slam and throb and crink 
and quiver and rumble and roar and 
rattle and yell and smoke and smell and 
shriek like hell all night long? — “Green- 
Avich News and Graphic,” March 4. 
T iiL Bl< YOLOGIST — The only magazine in the Eng 
lish language devoted wholly to articles dealing witfe 
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 curatori to 
assist beginners. Membership fee, $1.50 per year, 10 
eluding 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 manv 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 ARROR. MTCHT O \ V 
Earn $5 Day gathering Ferns, Barks, 
Roots and Herbs from the fields and 
roadside. We teach you. Free Book. 
Botanical B, West Haven, Connec- 
ticut. 
