586 Anali/tkal Notices of Books. 



bility that some of the ancients should '' have seen the perfect 

 insects of the modern CEstrus flying about cattle, and that they 

 should have witnessed the extraordinary agitation which they 

 produce," he shews himself in a few words sufficiently acquainted 

 ■with the very subject which Mr. B. Clark labours through pages 

 to bring to his notice. In the controversial part of his paper Mr. 

 B. Clark has therefore advanced nothing which is calculated in 

 the slightest degree to enlighten the antagonist whom he has 

 chosen to create for himself. His readers will find that its novel- 

 ties consist in the description of a new species of his genus Cuie-^ 

 rebra, (Cut. f online U a, thorace atro, lateribus albis ; abdomine 

 violaceojultiniis segmentis albis, nigro-punctatis,) which infests the 

 Rabbits of the Illinois ; in the mention that the CEstrus Ihieatus, 

 Meig., is the (Est. Bovis, Clark ; in certain other observations 

 relative to the synonymy of this genus j and in the suggestioQ 

 that the CEst. Bovis may produce a shrill sound, he having been 

 informed by a friend that he once heard it. On this latter point 

 Mr. Clark however still entertains doubts. 



The " Extracts from the Minute Book," which conclude the 

 volume, contain a notice by Mr. C. Willcox, of the naturalization 

 in Portsmouth Harbour of the Mytilus bidens : corrections by the 

 Rev. Lansdown Guilding to his generic character of Ascalaphusy 

 to his specific character, description, and history, of Jsc. Mac- 

 leai/anus, and to his papers on Xylocopa Teredo^ &c., and on 

 Onchidium : and extracts from a communication on the Locust 

 which lately devastated the Crimea and the Southern Provinces of 

 Russia, presented by J. Smirnove, Esq., F.R.S., &c. The latter 

 furnishes a history of the insect from its egg to its perfect state, 

 and of the means, usually ineffectual, employed for its destruc- 

 tion, or for the dispersion of its innumerable swarms. 



Journal of tJie Academy of Natural Sciences of Philadelphia. 

 Vol. V. Fart i. Philadelphia, 1825. 8vo. pp. 204. Plates viii. 



In the present part of a volume of these Transactions the zoo- 

 logical papers are as numerous as in any of those which have pre- 



