The Principles of Organic Architecture. 159 



EclunaracMnus Atlanticus. 



Uraster {Asteracanthion) rubens — one specimen eight inches 

 in 'liameter. 



Uraster , a species of which I have no description. 



The rays are 2J, times the breadth of the disk, Less flattened, and 

 with a narrower ambulacral groove than in U. rubens. The 

 ambulacral spines are short and cylindrical ; the upper part is 

 nearly uniformly and very thickly covered with groups of club- 

 shaped spines, nearly flat at their extremities. The madreporic 

 plate is coarsely marked ; the terminal plates of the rays are dis- 

 tinct and nearly annular. Is this the species described by Desor, 

 in Proc. of Bost. Nat. Hist. Soc, as Asteracanthion Foibesi. All 

 Mr. Carpenter's specimens have six rays. 



Halichondria — Three species, all apparently identical with spe- 

 cies found in other parts of the Gulf of St. Lawrence. 



Mr. Carpenter's collection also contains Platycarcinus irroratu s 



Balanus crenatus, and B. halanoides (ovular is). 



R E V I E AV . 



The Master-Builder'' s Plan ; c r, the Principles of Organic . 1 rchL 

 tecture as ///(Heated in the typical forms of Animals. By 

 George Ogilvie, M.D., Aberdeen. London: Longman & 

 Co. Montreal : B. Dawson & Son. Pp. 19G. 



The study of Zoology in these days requires something more 

 than merely to become acquainted with the names, appearances 

 habits and history of a certain number of animals with their eco- 

 nomic uses, and the interesting anecdotes, fabulous or true, which 

 have been related by travellers and lovers of the curious regard- 

 ing them. It is a serious matter of research to compass the field 

 which this wide and important department of science embraces. 

 A terminology must be m istered as difficult as that which pertain 3 

 to Chemistry, the m st technical of sciences. Anatomy and phy- 

 siology, with their curious structures and the difficult problems 

 pertaining to their final causes must be encountered; and the 

 department of Homology, which has risen in modern times to 

 vital importance, must be investigated. Comparative anatomy 

 has expanded itself into this latter phase, and aims at obtain- 

 ing for itself a distinct and generic place in Zoology. Vast as this 

 field may appear it is nevertheless included in the [proper and 

 systematic study of animal life. Difficult and profound as many 

 of the questions which it starts may 1"- they are yet perhaps the 

 most interesting, if not fascinating, of any that can engage the 

 human mind. They bring us into contact with mysterious life 

 whose source and destinies lead us to the throne of the Eternal 



