 | James Samuelson, Henry Lawson, William Sweetland Dallas - 1872 - 442 Seiten
...water being atlO°R. ( = 64l°F.). The eggs are readily fecundated by the artificial method. After they have been in the water a few minutes they adhere to...the embryo can be observed in progress at the end of cne hour. On the seventh day they hatch. At first the young fish are 0»-007 (about ^ inch) long. At... | |
 | 1872 - 828 Seiten
...being at 10° R. (= 54^° F.). The eggs are readily fecundated by the artificial method. After they have been in the water a few minutes they adhere to...seventh day they hatch. At first the young fish are Om.007 (about $/„ inch) long. At the age of ten weeks they are nearly two inches long. They feed... | |
 | 1872 - 824 Seiten
...being at 10° R. (= 541° F.). The eggs are. readily fecundated by the artificial method. After they have been in the water a few minutes they adhere to...seventh day they hatch. At first the young fish are Om.007 (about ^ inch) long. At the age of ten weeks they are nearly two inches long. They feed on larvae... | |
 | 1872 - 698 Seiten
...being at 10° B. ( = 54^° F.). The eggs are readily fecundated by the artificial method. After they have been in the water a few minutes they adhere to...seventh day they hatch. At first the young fish are Om-007 (about •$?$ inch) l°ng- At the age of ten weeks they are nearly two inches long. They feed... | |
 | 1872 - 832 Seiten
...being at 10° R. (— 54^° F.). The eggs are readily fecundated by the artificial method. After they have been in the water a few minutes they adhere to...in progress at the end of one hour. On the seventh clay they hatch. At first the young fish are O m .007 (about T V ff inch) long. At the age of ten weeks... | |
 | Royal Microscopical Society (Great Britain) - 1872 - 344 Seiten
...the end of one hour. On the seventh day they hatch. At first the young fish are Om'007 (about .£/v inch) long. At the age of ten weeks they are nearly two inches long. They feed on larva of insects, taking them from the bottom. Both in the egg and when newly hatched, the sterlet... | |
 | James Samuelson, Henry Lawson, William Sweetland Dallas - 1872 - 486 Seiten
...the seventh day they hatch. At first the young fish are O^-OO? (about j2575 inch) long. At the nge of ten weeks they are nearly two inches long. They feed on the Iarva; of insects, taking them from the bottom. Both in the egg and when newly hatched, the sterlet... | |
 | Henry Mills Alden, Frederick Lewis Allen, Lee Foster Hartman, Thomas Bucklin Wells - 1873 - 968 Seiten
...of the water being at 54.6° F. The eggs are readily fecundated by the artificial method. After they have been in the water a few minutes they adhere to...day they hatch. At first the young fish are about one-quarter of an inch long. At the age of ten weeks they are nearly two inches long. They feed on... | |
 | Charles W. Vincent, James Mason - 1873 - 378 Seiten
...being at 10° R. ( = 54J°F.) The eggs are readily fecundated by the artificial method. After they have been in the water a few minutes they adhere to...seventh day they hatch. At first the young fish are 0m. 007 (about 27-100ths inch) long. At the age of ten weeks they are nearly two inches long. They... | |
 | Spencer Fullerton Baird - 1877 - 732 Seiten
...the water being at 54.5° Fahr. The eggs arc readily fecundated by the artificial method. After they have been in the water a few minutes they adhere to...weeks they are nearly two inches long. They feed on larvra of insects, taking them from the bottom. Both in the egg, and when newly hatched, the sterlet... | |
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The eggs are readily fecundated by the artificial method. After they have been in the water a few minutes they adhere to any object which they touch. The development of the embryo can be observed in progress at the end of one hour. On the seventh day... 