154 Catalogue Raisonni. 



Heciostoma Nouvcau Genre, S^c. Observations on the Hectos- 

 toma, a new genus of Parasitical Worms of G. Cuvier. By SIr. 

 Raspail.— -/6i<i. 



■ A worm was lately found at Nice, by Mr. Laurillard, in the cup of a Se- 

 pia, and was described by Cuvier under the name of Hectostoma, (Vide 

 Vol. I. p. 218, of this Journal.) Might it not happen, asks Kaspail, 

 after inquiring into the grounds for the formation of this new genus, 

 that the tentacula of the Sepiae, like those of the Alcyonella, Rasp, may 

 more for a long time after being amputated, and in such a manner that 

 we might easily take them for infusoria, and in this case might we not 

 have an hectostoma ? 



Histoire Generale, 8^c. General History of Voyages and Tra- 

 vels, arranged and completed to the present day. By C . A. Walcke- 

 NAER. T. XVII. Paris, 1829. 8vo. 539 pages. 



This volume contains voyages to the Cape of Good Hope, and along the 

 western and southern coasts of Africa, from Cape Negro to Cape Corri- 

 entes. The travellers are, 1st, Cornelius de Jong, who twice visited 

 these countries, at first in 17^1, returning to Europe in 1793, and after- 

 wards going out in 1794, and returning in 1795. Mr. Walckenaer has pre- 

 ceded these two journies by a biographical notice of the traveller. 2d, 

 Percival in 1796, the colony having fallen into the power of the English. 

 3d, Barrow, whose well-known travels began in 1797, and lasted two 

 years. 4th, Semple in 1800 and 1801. 5th, Messrs. Truter and SomerviU« 

 m 1801 and 1802. The latter gentleman added considerably to the obser- 

 vations of Barrow. 6th, Henry Lichenstein in 1803 — 1806, also a most 

 interesting journey ; for the analysis of a portion of these travels, we are 

 indebted to the exact and learned Mr. Depping» 



Agenda Geogtiostica. Guide for the Geological Traveller, and 

 Lessons on Practical Geognosy. By C. C. de Leonhard; with 

 ;Four Plates. 8vo. Pp. 355. 



There is no practical geognost who has not drawn up for himself the out- 

 lines of a little work of this kind ; for when many subjects present them- 

 selves for rapid observation, it is almost impossible to pass in immediate 

 consideration the various points of view in which caverns, rivers, glaciers, 

 &c. must be examined, and the relations which they bear to geological facts. 

 ^ It would be impossible to make the work known or appreciated by any 

 ^ thing that we can say. It would be of the highest importance that it 

 should be translated into the English language. The practical geology 

 is by de Leonhard, — the natural philosophy by Muncke^ — the formula 

 for the dip of rocks and for soundings, by Dr. Arnetti ; Prof. Bronn 

 and Dr. de Konig have given information, the one on fossils, the other 

 on geographical botany. 



Handbuch der Zoologie, Sj'c. Manual of Zoology, or Description 

 of Animals from their external forms and their internal structure, 

 as well as from their functions. By C. Fischer, Professor at Vi- 

 enna, 1 vol. 8vo. Pp. 599. 



This manual is quite on a level with the actual state of the science. The 

 author has followed the order of Cuvier, only that he has begun by the 

 bottom of the animal chain. Man is not included, because the censor 

 would not allow of it. 



