British Encyclopedia: Or, Dictionary of Arts and Sciences, Comprising an Accurate and Popular View of the Present Improved State of Human Knowledge, Volume 11Mitchell, Ames, and White, 1821 - Natural history |
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Results 6-10 of 48
Page 37
... opening : the belly , the tumid part of the last turn , forming the right or outer lip ; that being termed the left which is formed on the co- lumella , and which Linnæus distinguish- ed as the columellar ridge . The spire is formed on ...
... opening : the belly , the tumid part of the last turn , forming the right or outer lip ; that being termed the left which is formed on the co- lumella , and which Linnæus distinguish- ed as the columellar ridge . The spire is formed on ...
Page 39
... openings of shells are sometimes closed by a shelly or cartilaginous plano - convex body , termed operculum , which is disposed between the two lips , and fitted to the form of the opening . The flat surface of this body is marked by a ...
... openings of shells are sometimes closed by a shelly or cartilaginous plano - convex body , termed operculum , which is disposed between the two lips , and fitted to the form of the opening . The flat surface of this body is marked by a ...
Page 41
... opening of the shell , turn back on the external convex surface , and cover it so completely as not to leave the least por- tion to be seen at the line where they meet each other , on the back of the shell . From the superior surface of ...
... opening of the shell , turn back on the external convex surface , and cover it so completely as not to leave the least por- tion to be seen at the line where they meet each other , on the back of the shell . From the superior surface of ...
Page 43
... opening of land shells , when they have obtained their full growth . At this period the tip of the shell , from the frequent egress and re- turn of the animal through the opening , has an additional portion of the testaceous matter ...
... opening of land shells , when they have obtained their full growth . At this period the tip of the shell , from the frequent egress and re- turn of the animal through the opening , has an additional portion of the testaceous matter ...
Page 47
... opening longitudinal , oblong , and con- tracted at the ends , entire at the base ; the columella oblique and smooth ... openings closed by an operculum , with four valves . These shells had been united by Linnæus under one genus , SHELL .
... opening longitudinal , oblong , and con- tracted at the ends , entire at the base ; the columella oblique and smooth ... openings closed by an operculum , with four valves . These shells had been united by Linnæus under one genus , SHELL .
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Common terms and phrases
abaft aft side aft-side animal appear birds bivalve body plan bone botany called calyx cavity centre circle class and order colour columella common consists corolla crystals curve deck diameter distance divided draw drawn drupe earth edge equal Essential character feet 6 inches fore side genus half breadth plan heat height hence hinge inches Jussieu keel kind Lamarck latter length Linnæus lower means ment middle line Monogynia class motion multivalve native Natural order nearly neral observed opening pain parallel perpendicular person piece plants Plate pounds produced quantity racter round salt seeds sensation sheer plan shell ship silica silk silver sometimes sophism species specific gravity square stars stone substance sulphuric acid surd surface teeth thick timber tion transom Triandria ture univalve upper side urethra valves vessel wound
Popular passages
Page 1 - I scarce could turn to fall upon the ground, with my head to the northward, when I felt the heat of its current plainly upon my face. We all lay flat on the ground, as if dead, till Idris told us it was blown over. The meteor, or purple haze, which I saw, was indeed passed, but the light air that still blew was of heat to threaten suffocation.
Page 5 - Of the nature of those changes which take place in the Digestion of Food. Of the Chemical Principles of the process of Tanning Leather; and of the objects that must particularly be had in view in attempts to improve that most useful art. Of the Chemical Principles of the art of making Soap ; of the art of Bleaching; of the art of Dyeing; and in general of all the Mechanical Arts, as they apply to the various branches of manufacture.
Page 25 - Hence too it follows, that the infamous and unchristian practice of withholding baptism from negro servants, lest they should thereby gain their liberty, is totally without foundation, as well as without excuse. The l«w of England acts upon general and extensive principles : it gives liberty, rightly understood, that is, protection, to a Jew, a Turk, or a Heathen...
Page 11 - It is very probable that the great stratum called the milky way, is that in which the sun is placed, though perhaps not in the very centre of its thickness.
Page 3 - The distance between two points on the surface of a sphere is the length of the minor arc of a great circle between them.
Page 19 - To this head may also be referred the practice of what is called a set-off: whereby the defendant acknowledges the justice of the plaintiff's demand on the one hand, but on the other sets up a demand of his own, to counterbalance that of the plaintiff, either in the whole or in part...