498 Bibliographical Notices. Genus and Species. Tetragonolepis confluens ... dorsalis heteroderma <..... Leachii leiosomus..... monilifer ovali« pholidotus pustulatus ............ radiatus speciosus striolatiis Tetrapterus priseus ......... Thrissops foraiosus ssdmoneus Thyellina prisca Tinea furcata Vomer longispinus Zygaena dubia New genus N. S N. S N.S..... N. S. Formation. Lias Do Do. Do. Do Do Do Do Do Do. Do Do London clay.., Green sand .., OoEte ........ Lias Tertiary beds Eocene Molasse Eocene Chalk Tertiary beds Black schist Eocene Locality. Lyme. Gloucestersh. Lyme. lb. lb. Barrow. Whitby. Lyme. lb. lb. lb. Barrow. Sheppy. Kelheim. Solenhofen-. Lyme. CEningen. Monte Bolca. Soleure. MonteBolca. Keret. Aix. Greenland. Monte Bolca. BIBLIOGRAPHICAL NOTICES. Natural History as a Branch of General Education. By Robert Pat-terson. Belfast. 8vo, 28 pp. 1840. There are perhaps very few persons who are not sensibly alive to the objects of study which Natural History presents, and yet the pro-portion of those who pursue any department of it as a science is but small. We may probably find an explanation of this circumstance in the operation of two causes. In the first place, the scientific pur-suit of zoology or botany cannot be so profitably applied to the arts by which wealth is accumulated as many other departments of sci-ence, amongst which we may mention chemistry and the various branches of natural philosophy. Men of science must live as well as other people ; and it is the lot of a few only to be able to pursue science independently of their means of subsistence. In the second place, Natural History has never occupied a pro-
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