SECTION KE. 
PROTECTION AND CULTURE. 
L INVESTIGATION. 
1. METHODS OF THE UNITED STATES FISH COMMISSION. 
a. Methods of work: 
Apparatus for collecting specimens, (see under B.) 
Apparatus for physical research. 
Appliances for working up results. 
(This should include a model of coast laboratory with all its 
fittings.) 
b. Results of work: 
Publications of the commission. 
Collections, (see under A, V to VIII.) 
Photographs, &c. 
I]. PROTECTION 
2. PRESERVATION OF GAME, FISH, &c.: 
* From man. 
a. Game laws. 
** From artificial obstructions. 
b. Fish-ways :! 
Gap fish-ways. 
Trench, ditch, or “ Cape Cod” fish-ways. 
Oblique grove fish-ways: 
Single groove. 
Brewer's. 
Mather’s. 
Step fish-ways: 
Box or pool fish-ways: 
Overflowing, (old style.) 
With passage-way cut down to the floor, (Smith’s.) 
With passage-way submerged, ‘(Cail’s.) 
With contracting galleries, (Pike’s.) 
With transverse-sloping floors, (Steck’s.) 
1 Classification proposed by C. G. Atkins. 
