The dark box connecting the camera 
and the front of the aquarium will be 
shorter than in fish photography, be¬ 
cause the smaller size of most aquatic 
invertebrates necessitates the use of the 
camera at full, or nearly full, extension, 
and the lens will be correspondingly 
closer to the front of the aquarium. 
Each group of aquatic invertebrates 
presents special problems of its own to 
the photographer. Some species move 
with such rapidity that fairly fast shut¬ 
ter speeds (1/25 to 1/75 second) must 
be used, and the majority of species, 
when they are active at all, have a con¬ 
stant slow motion. Other species, while 
mainly stationary, move some of their 
appendages continuously. Some spe¬ 
cies, such as the sea-anemones, refuse j 
to expand and assume their character¬ 
istic form except under very favorable 
circumstances. To deal with the pho¬ 
tography of each group would be to 
write a treatise on the structure, habits 
and psychology of aquatic inverte¬ 
brates, but the following hints may be 
of service : 
Here’s a New One! 
1. Study every species carefully be¬ 
fore photographing it, so as to 
learn as much as possible about 
its habits and peculiarities. 
2. Keep the speciments to be photo¬ 
graphed in an aquarium for some 
time previous to photographing 
them, as many species soon be¬ 
come habituated to aquarium life 
and are then much easier to 
handle. 
3. Use accessories which have been 
taken from the actual habitat of 
the species photographed. 
4. Photograph every specimen in its 
normal active condition and in as 
many characteristic positions as 
possible. 
In photographing plants the double¬ 
extension “hand and stand” camera will 
be used almost exclusively, as success¬ 
ful plant pictures call for a small stop 
and long exposure rather than large 
stops and rapid shutter-speeds. A 
seven-draw telescopic tripod, a uni¬ 
versal joint fitted to the tripod-head, an 
exposure meter, a set of filters, and a 
supply of panchromatic plates are the 
other requisites. 
If one type of plate only is to be 
used, it must be panchromatic. Ortho- 
chromatic plates used with an appro¬ 
priate filter, or the self-filtered plates, 
such as the Imperial Non-filter, Wel¬ 
lington Anti-screen, Ilford Screen 
Chromatic, or Gevaert Filtered-Ortho, 
used with or without a filter, give a 
very good rendering of white, blue, or 
pale yellow flowers, but not of red or 
deep yellow flowers, which are rendered 
properly only by a panchromatic plate. 
The Western High Velocity 30-30! 
A SPECIAL high velocity cartridge—just developed by WEST- 
that brings the old type 30-30 rifle up to modern 
lgh power standards. Many tests demonstrate conclusively 
that it has remarkable stiking and penetrating qualities which make 
! |\n artlCU 31 y ^ esira ^' e ^ or big game shooting. In one test, this 
0 gr. open point bullet-which gives a much flatter trajectory 
than the old standard 30-30, particularly at the long ranges- 
penetrated one-quarter inch boiler plate at 100 yards with sufficient 
reserve force to enter a back sft>p several inches. 
Using the new WESTERN 30-30, you have the added advantage 
ot its bullet jacket metal- Lubaloy -which absolutely prevents metal 
fouling in the barrel. The open-point construction of, the bullet 
traps the air at the instant of penetration which causes it to 
explode in the vitals with tremendous destructive power on big 
game. If you are interested in having the ballistic data on the 
new cartridge, let us hear from you. 
Ask Your Dealer 
There is a dealer near you who sells WESTERN AMMUNITION. 
He carries Western 'Field” shells, with the famous long-range 
Super-X load-and the "Marksman,” a remarkable .22 L R 
cartridge—or any of the other WESTERN shells and metafiles that 
have helped in capturing so many of the big championships of 
recent years. If you do not know where the nearest WESTERN 
dealer is located, write us for his name and address-and we wifi 
also send you free booklets describing any of Western’s achieve- 
ments which particularly interest you. 
Address Dept. Y-8 
WESTERN CARTRIDGE COMPANY 
•EAST ALTON, ILL. 
' ^§1 / 
AMMUNITION 
Page 4 53 
In icriting to Advertisers mention Forest and Stream. It will identify 
you. 
