144 Miscellaneous* 



From this very brief sketch it will be seen that the work is 

 hardly for beginners ; at any rate, many advanced students will 

 find in it much of value and interest. And, indeed, from what we 

 know of English students, we doubt whether (with all respect for 

 our authors) the younger, at any rate, would not be repelled by it 

 from the study of comparative anatomy. The following sentence 

 (p. 301) is no unfair example of their style : 



"Ductus Stenoniasus. — Stenon's duct, duct of the parotid gland 

 (fig. 87). It extends cephalad from the cephalic edge of the gland 

 along the ectal surface of the masseter muscle, nearly directly to- 

 ward the angle of the mouth. AVhen near the edge of the lip it 

 penetrates the cheek, passing entad of the facial vein (fig. 87, V. 

 facialis). It opens on the mucous surface of the cheek opposite the 

 most prominent cusp of the last premolar (fig. 57)." 



We are far from saying that we look with any thing like dissatis- 

 faction on the use of technical terms, that we do not recognize their 

 value, or the weight of the arguments brought by the present 

 authors in defence of their treatment of the subject; nor do we fail 

 to recognize the important services rendered to morphological and 

 descriptive anatomy by Barclay and Owen, and those who have 

 followed these masters ; nor do we say that we do not sympathize 

 with the remarks made in the volume before us rather than with 

 those of quite an opposite tendency which have been made by Mr. 

 Lyman in his Introduction to the Ophiurids of the ' Challenger y 

 expedition ; but we recognize just as much that strong meat is 

 not for babes, that the commencing zoologist, who should also be 

 being introduced to the elements of botany, has of necessity quite 

 enough technical terms to learn, and that it is the business of the 

 teacher to relieve him wherever and whenever he can. In other 

 words, the investigation and the discussion of morphological and 

 zoological problems is aided by the appropriate use of technical 

 and substantive terms, in place of periphrases and adaptations : but 

 early study, and a knowledge of the elementary characters of natural 

 objects are most successful when the objects themselves are veiled as 

 little as may be in terms which distract the attention and load the 

 memory. 



To those who can bear with them, we are glad to be able to 

 introduce this work. 



MISCELLANEOUS. 



The Migration* of the Aphis of the lied Galls of Ulmus campestris 



(Tetraneura rubra, Lichtenstein). By M. Licutenstein. 



The new theories upon the biological evolution of the Aphides, to 

 which I have been led by my long-continurd investigations of those 

 insects, although strongly contested at Paris, have made way in 







