132 



THE GEOLOGIST. 



tions ; and we must say, that we agree as to the justice of 

 their remarks ; and as to the non-adoption of the terms in 

 question. 



We should much regret to find that Geology, which ought 

 to be amongst the most simple and explanative of natural 

 sciences, should rank with its sister study. Mineralogy, in 

 verboseness, and confusion of details ; and we have intro- 

 duced the subject in order to lend our share of timely aid for 

 the prevention of fresh innovations, and to urge, if possible, 

 the introduction of a new system of nomenclature, which 

 shall at once obviate all the difficulties which have obtruded 

 themselves through the want of proper caution, as to the 

 recognition of new titles and characters. 



W e are happy to notice that the Scientific Society of Lon- 

 don has this month off'ered a premium, to induce Field Natu- 

 ralists to communicate their researches, always valuable, if 

 not altogether new. 



There is nothing beyond this general intimation which 

 requires particular comment from us, and we shall, therefore, 

 conclude our customary notice without further remark. 



THE EDITOR. 



ORIGINAL COMMUNICATIONS. 



Zoological and Geological considerations on the famikj of Ru- 

 dista, by A.d^Orhigny. 



(Read at the Academie Royale des Sciences, Janvier, 1842.) 



M. d'Orbigny states, that having been engaged on the 

 study of Rudista since 1822, he has arrived at the conclusion, 

 from the examination of a great number of facts, that they are 

 not allied to the Lamello-branchiae, as MM. Lamarck and 



