EEYIEWS — THE CANADIAN NATTJBALIST AND GEOLOGIST. 167 



margin thick and rounded, but thinned down to a sharp edge around 

 the perforation in the centre. 



"We think this species grew to a great size : there are columns in 

 the Trenton Limestone on the Ottawa river more than half an inch 

 in diameter at the upper or larger extremity, and which when perfect 

 appear to have been six feet in length. Their form is the same as in 

 this species, except that the annulations are not notched at the edges. 

 The plates of the cup are smooth— the rays are keeled — there are 

 four plates in each of the secondary rays — the arms are branched, 

 and composed of very numerous thin and flat joints. "We think 

 these are full grown specimens of G. ramulosus." 



The January number of the Canadian Journal contained a list of 

 some Lower Silurian fossils obtained from the strata laid bare by the 

 esplanade works in Toronto. The reader will find several of these 

 forms (Jlfodiolopsis modiolaris, Ambonychia radiata, Murchisonia graci- 

 lis, Sfc.,) figured and described in full in the publication now under 

 review. 



The following remarks explanatory of the general character of the 

 work, are quoted from the introductory address : — 



" The Magazine proposed to be established will be devoted exclusively to the 

 Geology aud Zoology of the British Provinces of North America ; and in conduct- 

 ing it I shall endeavor to make it as useful as possible to all who may feel inter 

 ested in the subjects to which it will be confined. I shall collect and compile all 

 the information concerning the fossils and animals of the country, within my 

 reach, commencing with the larger quadrupeds and more characteristic and com- 

 mon organic remains, and thence gradually proceeding to those more rare or 

 hitherto undescribed. The works consulted will be the best European and 

 American authorities. In the present number, some of the matter in two of the 

 articles, as will be observed, has been taken from the Reports of the Geological 

 Survey of Canada ; but as I understand that these invaluable documents are about 

 to be republished for general circulation, I shall confine myself to other sources 

 and such discoveries as I have made myself. In fact this Journal will consist 

 more of Natural History than of Geology in the restricted acceptation of the 

 term. It is intended principally to be of assistance to the youth of Canada, but 

 as it will contain many new species, and even several new and very remarkable 

 genera of extinct animals, I hope that scientific men will also regard it as favora- 

 bly as they can. In conclusion, I would respectfully solicit the public men of the 

 Province, and others who can do to without inconvenience to themselves, if they 

 think the work worthy of encouragement, to aid it by subscribing for it, and also 

 by using their influence in its favor." 



Altogether we recommend this new periodical most strongly to the 



attention of our members, and to all, indeed, who look with interest 



on the progress of Canadian Science. 



E. J. C. 



