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results 161-180 of 5711 item(s)  page 9 of 286 : ( <<  1  2  3  4  5  6  7  8  9  10  >> ) :: previous : next
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Two Eskimos, one woman and one man, in camp, Plover Bay, Siberia, July 1899.
161. Two Eskimos, one woman and one man, in camp, Plover Bay, Siberia, July 1899.
Two Eskimos, one woman and one man, in camp, Plover Bay, Siberia, July 1899.
162. Two Eskimos, one woman and one man, in camp, Plover Bay, Siberia, July 1899.
West side of the Columbia River one mile from Coulee dam, Washington, ca. 1940
163. West side of the Columbia River one mile from Coulee dam, Washington, ca. 1940
One of the two-room cottages built and operated in connection with National Park Inn at Longmire, Mount
164. One of the two-room cottages built and operated in connection with National Park Inn at Longmire, Mount Rainier National Park, Washington, ca. 1925.
Success Peak, one of the three summit peaks of the mountain, as seen from the west side of Mount Rainier
165. Success Peak, one of the three summit peaks of the mountain, as seen from the west side of Mount Rainier National Park, Washington, ca. 1925.
5-Paralichthys albiguttus, on very fine gray sand, almost entirely covered with sand, from August 19
166. 5-Paralichthys albiguttus, on very fine gray sand, almost entirely covered with sand, from August 19 to 21. Note the two small depressions in the sand at the base of the caudal fin. The lower one is much more prominent than the other. This individual breathed only through the lower gill. The water which entered the mouth passed back under the body and oozed up through the sand, forming the depressions. The animal was very effectively concealed. 6-Same individual uncovered.... 7- Paralichthys, 13 cm. long, in a glass dish over very fine black sand. Note the remarkable similarity between the pattern and the shade in the fish, especially the central part of the body, and those of the sand. The tips of the fins and the tail have no pigment and consequently stand out boldly against the background. 8- Paralichthys albiguttus, 16 and 10 cm long, on a smooth jet black background. Note the conspicuous white spots. In some instances all of these, except a trace of the one at the base of the pectoral fin, disappeared entirely
Canal system of Sycon gelatonosoma. Transverse section through the wall of a cylinder (parallel with
167. Canal system of Sycon gelatonosoma. Transverse section through the wall of a cylinder (parallel with the corner of the canals), showing one incurrent canal (IC) and one radial (R) throughout their length....
Figs. 1-20 illustrate the growth of the seed oysters caught on small stones. Figs. 1-10 show three-month-old
168. Figs. 1-20 illustrate the growth of the seed oysters caught on small stones. Figs. 1-10 show three-month-old oysters attached to living snails (littorina littorea). Figs. 11-14 show the oysters of the same age attached to small stones. Figs. 15-18 show oysters one and one-half years old attached to small peggles, while Figs. 19-20 show two and one-quarter-year-old oysters attached in the same fashion. Fig.16 gives a peculiar illustration of the method of attachment. The young oyster has formed an attachment to a second pebble towards its free end at some distance from the first, indicating that the mantle, even at the age of one year, retains the power of secreting a fixative.
Growth of a quahaug in the raft boxes, Monomoy Point, from one and one-half to five and one-half years
169. Growth of a quahaug in the raft boxes, Monomoy Point, from one and one-half to five and one-half years old, is shown with the corresponding increase in volume. Starting with 1 bushel of one and one-half-year-old quahaugs, there would result at the age of five and one-half years approximately 19 bushels. The figures on the left give the size of the quahaug...; those on the right represent the volume in bushels corresponding to the various years.
Troughs for Rearing Mussels In troughs supplied with naturally clarified water flowing from near
170. Troughs for Rearing Mussels
In troughs supplied with naturally clarified water flowing from near the surface of one of the ponds, the best conditions have been found for rearing several species of fresh-water mussels. As is the fortune of experimental work, success has been variable, but a single trough may produce in one season more than 2,000 young mussels one-fourth to one-half inch in length
Estheria obliqua, one of the Conchostraca A: Shell of female from the side; B, male from the side,
171. Estheria obliqua, one of the Conchostraca
A: Shell of female from the side; B, male from the side, after removal of one valve of the snell. a' Antennule; a', antenna; ad, muscle which draws together the valves of the shell; f, tail fork; md, mandible
Mackerel Hook Fishery Jibs and jig-molds: A, one side of soapstone jig-mold, showing method of setting
172. 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
In the Shipping Room. In the foreground are two 6t h. p. engines and one 50 h. p. and one 40 h. p. ready
173. In the Shipping Room. In the foreground are two 6t h. p. engines and one 50 h. p. and one 40 h. p. ready for boxing, while two 85 h. p. motors are boxed and ready for delivery. In the background are a large number of engines ready for shipment : Standard Gas Engine Company, Oakland, California
Solea vulgaris : Skeleton of the Common Sole; the branchial arches, jaws, and bones of the paired fins
174. Solea vulgaris : Skeleton of the Common Sole; the branchial arches, jaws, and bones of the paired fins have been removed, all the other bones are in their natural position in relation to one another (1); One of the dorsal fin-rays; a, from the side; b, from the front (2)
Scallops over one year old, as shown by the formation of the annual growth line, which is caused by cessation
175. Scallops over one year old, as shown by the formation of the annual growth line, which is caused by cessation of growth during the winter months. Any scallop which does not possess this annual growth line is less than one year old, and is a 'seed' scallop. The present legal definition of a 'seed' scallop is based on the annual growth line, as its absence indicates that the animal has not as yet reached its spawning season, and is, therefor, an immature animal
Scallops over one year old, as shown by the formation of the annual growth line, which is caused by cessation
176. Scallops over one year old, as shown by the formation of the annual growth line, which is caused by cessation of growth during the winter months. Any scallop which does not possess this annual growth line is less than one year old, and is a 'seed' scallop
Yukon River steamer towing three barges--One barge is lashed ahead and one on each side of the bow
177. Yukon River steamer towing three barges--One barge is lashed ahead and one on each side of the bow
Increase in size in one year of clam one inch long when planted
178. Increase in size in one year of clam one inch long when planted
Native Oysters One year old, attached to rock; set and reared in one of the floats at the Fisheries
179. Native Oysters
One year old, attached to rock; set and reared in one of the floats at the Fisheries Experiment Station (About two-thirds natural size.
Owner of the Upper Market and one of his vendors in the city of Karachaeyesk
180. Owner of the Upper Market and one of his vendors in the city of Karachaeyesk
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