36 ANIMAL RESOURCES OF THE UNITED STATES. 



31. ENCIRCLING-NETS— Continued. 



b. Hoop-nets : 



Handle or dip-nets : 



Scoop-nets, (herring-nets, pound-scoops, car-scoops, &c.) 



Landing-nets. 



Eskimo auk-nets. 

 Baited koop-nets : 



Crab-nets. 



c. Trailing-uets : 



Trawls : 



Beam-trawl. 



(Otter- trawl.) 

 Dredges : 



Flange, or ordinary dredge. 



Rake-dredge. 



Oyster-scraper. 



(Coral-dredge.) 

 Towiug-nets : 



Surface tow-nets. 



d. Folding or jerk nets: 



Purse-nets : 



Mackerel purse-seines, (pursed by weight.) 



Menhaden purse-seines, (pursed by hand-ropes.) 

 Cast-nets : 



Mullet cast-nets. 



Pompauo cast-nets. 



Bait cast-nets. 

 Clap-nets for birds. 

 Rabbit-spring nets. 

 Spring-weirs, (St. Lawrence.) 

 Sieve- traps, (for birds.) 



e. (Accessory.) Parts of nets and apparatus for manufacture: 



Raw material of nets. 

 Babiche. (See under D. 20.) 

 Netting-fibre. 

 Netting-twine. 

 Netting-needles. 

 Mesh-needles. 

 Hanging-needles. 

 Eskimo netting-needles. 



