170 Quarterly Journal of ConcJiology. 



chology. As Dr. Kobelt remarks, the partisans of the multiplicatiori 

 of species have only to strike out the word "var." in cases where 

 they consider the forms thus described to be species, to make the 

 work suit their views. 



The parts already published are devoted to the illustration of 

 various species oi Helix, especially of the subgenus CampylcBa. The 

 following may be mentioned as worthy of special notice. Helix 

 atrolabiata, Pouzolzi (a remarkable dwarf variety ) trizoria (a whole 

 plate of illustrations), desertorum {vaoxQ than a plate of figures), 

 turcica, Mogadorensis, mograbina, lucorum (a whole plate), Buchii, 

 pachya, ligata (several varieties), /«'/'^«.f (3 vdix?,.), platiospira (a whole 

 plate), several of the hirsute CampylcRce, cingulata (nearly 2 plates), 

 cydolahris (several vars.), Mollendorffi, Velascoi, ca?itabrica. 



The last plate contains figures of some species of Zotiites, but 

 the corresponding text has not yet appeared. 



If we turn to the material execution of the work, we find equal 

 reason for approval. The form, very small 4to, is in our opinion 

 much more handy and convenient than the large size of Reeve 

 and other "ouvrages de luxe" ; each part is enclosed in a case or 

 portfolio, thus guarding against the risk of injury to which works 

 issued in loose sheets and plates are generally exposed ; the plates 

 are excellently drawn, (by the accomplished wife of the author,) and 

 well colored, as we have ourselves ascertained by the comparison of 

 several figures with specimens. We regard this last point as very 

 important for unless a plate be really, well and accurately coloured 

 it had better, in our opinion, be left plain, as bad colouring is only 

 misleading. 



We would advise all conchologists who take an interest in the 

 European fauna, or in any portion of it, to procure this work — It 

 may be as well to mention that though the remarks are in German, 

 the descriptions of species and varieties are in Latin. 



We hope we may be allowed to express a wish to see the first 

 three volumes of Rossmassler re-issued, as they are now out of 

 print, and it would be very desirable to be able to obtain the com- 

 plete work. C. P. G. 



