HYP 



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fl Y S 



cells ; the wasps in scraping parti- 

 cles of wood from posts and rails 

 for a similar purpose, and likewise 

 to seize their prey; but the great 

 instrument by which they collect 

 their food is their tongue ; this the 

 bees particularly have the power 

 of inflating, and can wipe with it 

 both convex and concave surfaces ; 

 and with it they lick, but not suck, 

 the honey from the blossoms, for 

 Keamur has proved that this organ 

 acts as a tongue, and not as a 

 pump. 



HYPANTHOCEINI'TES. (from VTTO, under, 

 av6o<$, a flower, and Kplvov, a lily.) 

 A genus of encrinites belonging to 

 the Silurian system, and established 

 by Phillips. The name of this 

 genus is taken from the floriform 

 aspect of the basal portion of the 

 body. In this new genus, says 

 Prof. Phillips, the lowest plates 

 clearly seen appear to correspond 

 to the first costals of the genus 

 Actinocrinites. One species only 

 is described, namely, H. decorus, 

 which is described and figured in 

 Sir. E. Murchison's Silurian Sys- 

 tem. 



HY'PERSTHENE. \ (from virep; above, 



HY'PEESTENE. ) and <r0evos, strength, 

 Gr., in allusion to its difficult re- 

 frangibility.) Prismatoidal Schil- 

 ler-spar. Labrador Schiller-spar. 

 A mineral of a greenish-black co- 

 lour, but on the cleavage of a 

 copper-red. Occurs in granular 

 and lamellar concretions, and mas- 

 sive. It is found in Labrador, in 

 the Isle of Skye, in Banffshire, and 

 in the Shetland Isles. It is com- 

 posed of silica, magnesia, alumina, 

 lime, and oxide of iron, the last of 

 which is said to form one-fourth of 

 the whole. 



HYPOCRATE'BIFOBM. Salver-shaped ; 

 a term applied to a monopetalous 

 corolla, the limb of which being 



placed on a tube, spreads out hori- 

 zontally. 



HYPOGA'STBIC. (from v-a-o and <yaffvrjp, 

 Gr.) Belonging to that region of 

 the abdomen which is called the 

 hypogastrium. 



HYPOGA'STRITJM. The lower anterior 

 region of the abdomen, from a 

 little below the umbilicus, or navel, 

 to the pubes. 



HY'POGENE. (from VTTO, under, and 

 ftvofjuu, to be born, Gr.) A term 

 applied to rocks, expressing that 

 they have assumed their form or 

 structure, at a depth from the 

 surface. 



Sir C. Lyell, who proposes to 

 give this term to certain rocks, 

 observes, "It will appear that the 

 popular nomenclature of geology, 

 in reference to the so called * pri- 

 mary' rocks, is not only imperfect, 

 but in a great degree founded on a 

 false theory; inasmuch as some 

 granites and granitic schists are of 

 origin posterior to many secondary 

 rocks. In other words, some pri- 

 mary formations can already be 

 shown to be newer than many 

 secondary groups, a manifest con- 

 tradiction in terms." To obviate 

 this difficulty, Sir C. Lyell prefers 

 the term hypogene, as one not of 

 chronological import, but implying 

 the theory that such rocks are 

 netherforraed, and have not as- 

 sumed their form and structure at 

 the surface. 



HY'BACOTHERE. } An extinct genus 



HYEACOTHE'BIUM. ) of pachydermal 

 mammalians, remains of which have 

 been found in the London clay. 

 Two species, H. Cuniculus, and 

 H. Leporinum have been described 

 by Prof. Owen. The nearest exist- 

 ing ally to the Hyracothere is now 

 peculiar to America. 



HY'STEIX. (&TT/M& Gr.) The por- 

 cupine. 



