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Many Small Printed: Water depths are shown on a chart by many small printed fig¬ures, usually in feet or fathoms. Most foreign, and some U.S., charts show depths in meters and decimeters (tenths of a meter); 1 meter = 3.28 feet. The printed depth figures are only a very small frac¬tion of all the depth measurements taken during a survey. Only the more significant and representative depths are shown on a chart. Wide spacing of depth figures means a fairly uniform bottom; wherever the depths vary irregularly or abruptly, the figures will be more frequent and more closely spaced. Depth curves appear on many charts—lines connecting points of equal depth. The depths for each line are indicated on the chart and may vary with the scale of the chart.
But if the daily papers used photographs in a some what sporadic way, the Sunday newspapers began to fea¬ture photographs in supplements, printed in brown ink by rotogravure, a variation of photogravure. As perfected by Edward Mertens in Germany in 1904, the intaglio plate bearing the illustrations was wrapped around a cylinder. A second cylinder carried the type. With this tandem press the Freiburger Zeitung printed ten thou¬sand impressions per hour for its Easter 1910 issue. Later the printed matter was photomechanically repro¬duced on the same plate as the illustrations, and the sec¬ond cylinder was eliminated.
In the late 1920s there were more illustrated maga¬zines in Germany than anywhere else in the world.See Also That The Small Extinguishers:Fire extinguishers containing an extinguishing medium which either itself or when in use gives off gases harmful to persons are not to be used. For radio rooms and switchboards, extinguishers containing not more than 1.1 liter (1 U.S. quart) of carbon tetrachloride or similar media may be permitted, provided such extinguishers are additional to those otherwise required.
Fire extinguishers are divided into the same three classes—A, B, C—as fires. By law, shipboard extinguishers must be of the B cat¬egory, effective against fires in petroleum-based and other flam¬mable liquids and products. But most extinguishers can put out more than one type of fire. A carbon-dioxide or dry-chemical B extinguisher will also be effective against a Class C electrical fire, whereas a foam-type B extinguisher will help put out ordinary Class A fires, but is not effective against Class C electrical fires. Boaters should remember that the small extinguishers for typical small Class A fires in wood, paper, or bedding, the popular dry-chemical extinguishers are not as effective as ordinary buckets of water. Get the burning material, especially bedding, over the side as quickly as possible.
On The Other Hand See Small Enough:Among the best small enough-aquarium inhabitants are small enough marine snails and barnacles. Starfish, sea urchins, sea cucumbers, and sea anemones will usually live for a few weeks and under carefully controlled conditions may be kept in aquaria for much longer periods. small enough crabs will often thrive where more exacting forms die, and Obelia will often live and reproduce new colonies in very small enough aquaria. . . .
Feeding the Animals
Vary according to habitat. Capture small enough ones with dip net.
Strange, small enough crabs that live in borrowed houses, usually in broken shells, often much too large or small enough for them. Captured easily by hand; found most often higher up on beach and quite far from water's edge. |
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