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Five Species of Pacific Salmon Showing Relative Size and Appearance.
21. Five Species of Pacific Salmon Showing Relative Size and Appearance.
Swanson Can-Opener : a new and practical device invented by a practical canneryman. Will open any size,
22. Swanson Can-Opener : a new and practical device invented by a practical canneryman. Will open any size, any diameter, any style sanitary can
Skeleton of Right Whale Showing Comparative Size of Man. A--Bones which represent legs
23. Skeleton of Right Whale Showing Comparative Size of Man. A--Bones which represent legs
Fur Seal Harem. Showing the relative size of the male and females, young, various attitudes, positions,
24. Fur Seal Harem. Showing the relative size of the male and females, young, various attitudes, positions, etc.--St. Paul's Island--June 29, 1872
One of the outside floats, car raised. The size and shape of the propeller is well shown
25. One of the outside floats, car raised. The size and shape of the propeller is well shown
Companularia edwardsi Nutting. A. Colony, natural size
26. Companularia edwardsi Nutting. A. Colony, natural size
Leuciscus hydrophlox (Cope). Chub. Natural size
27. Leuciscus hydrophlox (Cope). Chub.
Natural size
Scallop Dredge,--"The Scraper."--This implement has the form of a triangular iron framework, with a curve
28. Scallop Dredge,--"The Scraper."--This implement has the form of a triangular iron framework, with a curve of nearly 90o atthe base, to form the bowl of the dredge. On the upper side a raised crossbar connects the two arms, while at the bottom a strip of iron 2 inches wide extends across the dredge. This narrow strip acts as a scraping blade, and is set at an angle so as to dig into the soil. The top of the net is fastened to the crossbar and the lower part to the blade. The usual dimensions of the dredge are: arms, 2 1/2 feet; upper crossbar, 2 feet; blade, 2 1/2 feet. The net varies in size, usually running from 2 to 3 feet in length and holding between 1 and 2 bushels. Additional weights can be put on the crossbar when the scalloper desires the dredge to "scrape" deeper. A wooden bar 2 feet long buoys the net. The scraper used at Nantucket has the entire net made of twine, whereas in other localities the lower part consists of interwoven iron rings
Spat Oyster spats at different short intervals after fixation.... The larval shell (prodissoconch)
29. Spat
Oyster spats at different short intervals after fixation.... The larval shell (prodissoconch) maintains the same size as long as it can be recognized in a spat. Larval shells of all spats maintain approximately the same size, no matter how large the spats grow. In all the figures the prodissoconch is shaded, the dissoconch only outlined. The spats soon become so large that a lower power objective has to be used in order to see the whole spat at once.
Yunnan-Guizhou Townships, 2000 Household size (A5:A4)
30. Yunnan-Guizhou Townships, 2000 Household size (A5:A4)
Sichuan-Chongqinh Townships, 2000 Household size
31. Sichuan-Chongqinh Townships, 2000 Household size
[Quahots]: These two sizes illustrate the sti ulating effect on growth of current, which acts as a
32. [Quahots]:
These two sizes illustrate the sti ulating effect on growth of current, which acts as a food carrier. In each bet quahaugs of the same size were planted and allowed to remain for three years. The larger quahaugs were planted in a box on the raft, where the circulation of water was good; the smaller in the southeastern corner of the Powder Hole, not 75 yards from the raft, in shallow water among thick eelgrass, which shut off all circulation.
Young Quahog. 1 millimeter in size, half buried in the sand. The animal is feeding, water passing
33. Young Quahog.
1 millimeter in size, half buried in the sand. The animal is feeding, water passing in and out of the extended siphon, as shown by the arrows.
Groty of Mya in two years on 1-100 of an acre of a barren flat. The small pile at the right represents
34. Groty of Mya in two years on 1-100 of an acre of a barren flat. The small pile at the right represents the size and volume of the seed clams planted. The larger pile is eight times the volume of the smaller.
Experiments by D. L. Belding, Mass. Fish and Game Com.
April 18, 1912 Page three Set at liberty Revenue cutter changes May limit size of ships W.A.
35. April 18, 1912 Page three
Set at liberty
Revenue cutter changes
May limit size of ships
W.A. Kuehn dead
Primaries Saturday night
Mackerel Hook Fishery Jibs and jig-molds: A, one side of soapstone jig-mold, showing method of setting
36. Mackerel Hook Fishery
Jibs and jig-molds: A, one side of soapstone jig-mold, showing method of setting hook; B, soapstone jib mold, closed; C, one side of lead jig-mold made by fishermen; D, lead jig-mold, closed; E, old-style paper jig-mold; F and G, types of jigs, natural size, cast in paper molds; H, type of jig, of medium size, cast in soapstone molds. I, mackerel bobber
Bliss No. 1K Semi-Automatic Water Tester.--A machine for testing round or square cans from 1 1/2 to 6
37. Bliss No. 1K Semi-Automatic Water Tester.--A machine for testing round or square cans from 1 1/2 to 6 3/4 inches in diamter by 1 1/2 to 6 inches in length, or the equivalent. Adapted for sanitary cans. It may also be arranged for larger work. Some of the different style cans, for the testing of which it is used, are shown in the illustration. The output, which depends on the size of can and the expertness of the operator, is from 4,000 to 10,000 cans a day.
Bliss No. 18 Automatic Double Seamer.--The operation of this machine, which is used for double seaming
38. Bliss No. 18 Automatic Double Seamer.--The operation of this machine, which is used for double seaming tops of filled cans, is entirely automatic. It is built to handle round, square, oval and oblong cans. In this machine the can stands perfectly still while being double seamed. The operator has only to place the filled cans with the tops on the feed table, where the jaws take the can and top, maingaining them in currect relation to each other. After double seaming, the can is carried away withoug futher manipulation on the part of the operator.
The machine has a capacity of 15 to 25 closures per minute, this varying according to the size and shape of the can to be double seamed. 3/4 sardine cans are handled at the rate of 20 per minute.
Scallops: Changes in form of shell. A series of drawings illustrating the changes from the early veliger
39. Scallops: Changes in form of shell. A series of drawings illustrating the changes from the early veliger (the first shell), which is 1/10 of a millimeter in size, to a 2-millimeter scallop. Note (a) change from flat-hinged veliger (1) to the prodissoconch (2), with prominent umbones; (b) return to a straight hinge (3), witdth greater than height; (c) width and height become equal (8); (d) formation of 'ears' (10)
Deceptive Hermit-Crab of the Lithodes Group Paralomis indica, a crab-like Hermit-crab, from off the
40. Deceptive Hermit-Crab of the Lithodes Group
Paralomis indica, a crab-like Hermit-crab, from off the Travancore coast, 430 fathoms. The last pair of legs are much reduced in size, and are folded out of sight
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