This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1888 Excerpt: ...day is something more than a source of unmitigated discomfort and complaint cannot easily pass a more delightful hour than by navigating the quiet waters in search of medusae. These exquisite creatures, for all the world like waterbubbles, will almost surely be out in greater or less number; but some of them are so ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1888 Excerpt: ...day is something more than a source of unmitigated discomfort and complaint cannot easily pass a more delightful hour than by navigating the quiet waters in search of medusae. These exquisite creatures, for all the world like waterbubbles, will almost surely be out in greater or less number; but some of them are so minute, almost microscopic, others so transparent, that, unless the sea is actually covered by them, a sharp Medusa. watch must be kept, or else they will escape us. A glass jar will be of service in a trip of this kind, as through its aid a rapprochement may be effected between us and the tiny creatures whose habits we wish to study. Some appear nearly torpid on the surface, dragging their tentacles wearily after them; others, again, are darting actively along, propelled by successive pulsations of their transparent bells. It is at first difficult to conceive that these delicate films are indeed masses of organized animal matter, so frail and evanescent do they appear as they noiselessly slip by. But scoop up a Clytia, or a Dactylometra (PI. 4, Fig. 6), and examine the animal leisurely in the jar that has been brought for that purpose. Structures that escaped our attention before are now distinctly visible. The pulsating bell is the first object to attract our notice. Its perfect transparency permits us to see, suspended from the centre of the interior, a peculiar pouch-like body, at the extremity of which is situated the mouth. The water entering by the mouth passes into the hollow of the pouch or manubrium, whence it is in great part distributed to the four radiating canals which descend the sides of the bell to its base and divide it into four equal parts. These vessels, which constitute a part of the circulatory system of the animal, merge i...
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PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
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Seller's Description:
PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
