518 Canadian Record of Science. 



than this trioptic creature was discovered. His next argu- 

 ument was drawn from the modifications of the legs of 

 crustaceans, particularly decapods. Then he considered the 

 work of a writer who had examined into the ill-effects, 

 physically, which had resulted from man's deserting the 

 posture of his quadrumanous ancestors and assuming an 

 erect attitude. This author advanced a curious series of 

 facts concerning the valves of men's veins, and specially 

 concerning those veins where there are no valves. In an 

 erect posture this absence of valves is detrimental, but in the 

 ancestral attitude of the mammal man, it was a matter of 

 no moment. 



Professor Morse's address was so replete with statements 

 of fact, that the above must be considered a very imperfect 

 and fragmentary account of it ; indeed he was obliged to 

 omit in the reading much of what he had written. 



Reviews and Book Notices. 



The Geology op England and Wales ; second edition, by 

 Horace B. "Woodward, F.G.S. 



This is a new edition of a well-known book, which has 

 for many years been in the hands of all working English 

 geologists, and of those abroad interested in making com- 

 parisons with the geology of England. 



The present edition is considerably enlarged, and gives a 

 fair account of the recent changes in the nomenclature and 

 classification of English rocks, and which are especially im- 

 portant in the older foi mations. England is not rich in 

 Eozoic or "Archsean" rocks, and from the occurrence of 

 these in limited areas and with indifferent exposures, there 

 is still some controversy about their nature and arrange- 

 ment. It is perhaps %o be regretted that Dr. Hicks, who 

 has endeavoured to establish these older formations, had 

 not at once boldly called his " Dimetian" Lauren tian, and 

 his " Pebidian" Huron ian. There can be little doubt that 

 they are the equivalents of the rocks so named by Logan, 

 and to have accepted the names already given might have 



