4 J 50 Notices of New Books. 



" For the further information of the student the modern French sci- 

 entific names have been added, together with a carefully revised and 

 copious index to the systematic names in both languages ; whilst in 

 several instances notices have been introduced of the appearance of 

 the same species in other countries, for the purpose of illustrating 

 some peculiarity of habit not observable in our own. 



" For the better economy of space and consequent saving of ex- 

 pense, I have omitted a description of the plumage of the birds, pre- 

 ferring to give a familiar description of their habits and migrations 

 rather than to occupy the work with a quantity of matter not suffi- 

 ciently attractive to the general reader." 



' The Annals and Magazine of Natural History? No. 71, dated 

 November, 1853. London : Taylor & Francis, Red Lion Court, 

 Fleet Street. Price 2s. 6d. 



The papers in this number are as follows : — 



6 On the Nucleus of the Characea?.' Translated by Mr. A. Henfrey 

 from the original of Al. Braun. 



' On the Branchial Currents in the Bivalves.' By William Clark, 

 Esq. 



' On Preserving the Balance between the Animal and Vegetable 

 Organisms in Sea Water.' By Robert Warington, Esq. 



' On the Cornbrash of the Neighbourhood of Cirencester.' By 

 James Buckman, F.L.S., F.G.S., Professor of Geology, Royal Agricul- 

 tural College. 



* On the Teeth of the Pneumonibranchiate Mollusca.' By J. E. 

 Gray, Ph.D., F.R.S., V.P.Z.S. 



6 On the Mechanism of Aquatic Respiration, and on the Structure 

 of the Organs of Breathing in Invertebrated Animals.' By Thomas 

 Williams, M.D. Lond. 



Proceedings of Societies : — Zoological. 



Miscellaneous : — Spadix purpurea ; by W. P. Cocks. Note on 

 the Parasitism of Comandra umbellata ; by Asa Gray. Rare Irish 

 Mollusca; by William White Walpole. Natica sordida; by the same. 



With respect to these valuable papers we have scarcely any com- 

 ments to make. That most interesting to zoologists has been kindly 

 transmitted by the author, Mr. Warington, for publication in these 

 pages, (see Zool. 4118). Mr. White Walpole's brief notice of 4 ' Rare 



