Bibliographical Notice. 467 



45. Psaliodes signata, Butler. 

 Psaliodea mynata, Butler, Trans. Ent. Soc. 1882, p. 418. n. 122. 



No. 124. 



46. Psaliodes diaua, Butler. 

 Cidaria diana, Butler, Tr.ans. Eut. Soc. 1832, p. 41(3. n. 118. 

 Nos. ;J2 and 472. 



Var. Cynthia^ Butler. 

 Cidaria diana, var. ci/nthia, Butler, I. e. 

 No. 37. 



47. Eupithecia corrulensis^ Butler. 



Heldstia corralensis, Butler, Trans. Ent. Soc. 1882, p. 406. n. 100. 



$ . Unnumbered, 



The female is considerably larger t!ian the male, but quite 

 like it in colouring and pattern. 



BIBLIOGRAPHICAL NOTICE. 



Elementarif Palceontology for Geoloijical Students. By Henry Woods, 

 B.A., F.G.S. 8vo. 222 pages, with numerous cuts. University 

 Press, Cambridge, 1893. 



The study of palaeontology of course requires a knowledge of existing 

 forms, as these are the outcome of the older creatures and have close 

 relationship as well with them as one with another. The relics of 

 extinct organisms, though di.stinct enough, as material consisting 

 usually of silica or carbonate of lime, rarely correspond to all parts 

 found in recent forms, and therefore, though supplying little enough 

 to a Zoologist, are all that can be made useful by a Geologist, knowing 

 their value as zoological indications, and competent to recognize the 

 history of their embedment in deposits, the mineral changes they 

 may have undergone, and any altered positions of tho strata that 

 contain them. 



This little guide-book (one of the " Cambridge Natural-Science 

 Manuals") confines itself to a succinct account of those fossil Iiiver- 

 tebrata which are of most use to the Geologist; and the student is 

 expected to have tho opportunity of consulting a collection of 

 fossils. 



In the lutroduction some short remarks are offered on tho con- 



35* 



