454 Bibliography. 



recommended by the name of Agardh, which is as much identified with 

 Algology as that of Linnaeus is with Botany. Since the elder Agardh 

 published his Systema Algarum, there have been such vast additions to 

 the knowledge of this difficult tribe of plants that an attempt to arrange 

 the chaotic materials by such an experienced hand as that of the younger 

 Agardh cannot but be welcome. This volume contains a full descrip- 

 tion of all the Fucoidere (Melanospermese of Harvey) and appears to 

 be written with great care and judicious discrimination. The second 

 and third volumes .which are to contain the Zoospermese and Floridese 

 will be eagerly looked for. J. W. B. 



8. Species Algarum; auctore Friderico Traug. Kutzing, Prof. 

 Nordhusano. 1 vol. 8vo. pp. 922. — This is a handsomely printed 

 volume embracing the whole range of Alga? and even including those 

 obscure organisms, the Diatomece and Desmidiece, which seem " to 

 hover between two worlds," the vegetable and the animal. About 600 

 genera are described, of which, as well as of the species, many are new. 

 Much valuable information is contained in this volume as well as in the 

 Phycologia Generalis, and " die kieselschaligen Bacillarien oder die 

 Diatomen" of the same author. J. W. B. 



9. Tabula Phycologica, oder Abbildungen der Tange, heraus- 

 gegeben von F. T. Kutzing. I. bis V. Lieferung, Gr. 8. Preis 

 einer Lieferung mit 10 schwarzen Tafeln 1 Thlr., colorirt 2 Thlr. 



We have not seen any portion of this work, but we learn that as the 

 Diatomece have been figured in the author's work on " die kieselschali- 

 gen Bacillarien," and the Desmidiere in Ralfs unrivaled volume, "the 

 British Desmidese," they will be omitted in this work, which will give 

 representations of the remaining portions of the Alga). Executed with 

 the skill displayed in the plates to the author's Phycologia Generalis, 



the work cannot but be a most valuable addition to science. 



J. W. B. 



10. Geology of the United States Exploring Expedition under C. 

 Wilkes, U. S. N. ; by James D. Dana, Geologist of the Expedition, 

 750 pp. 4to, with 4 maps, numerous wood-cuts, and an alias of 21 

 folio plates. This work which has just appeared from the press, treats 

 of the following subjects. 



I. General remarks on the Pacific Ocean — topography and trends of 

 islands— geological structure, pp. 9-26. 



II. On Coral Formations — feaiures, structure, origin, distribution and 

 geological deductions, pp. 29-154. 



III. On the Hawaiian (Sandwich) Islands — including deductions on 

 volcanic action, pp. 155-284. 



IV. V. VI. Society Islands, — Samoan or Navigator Islands, — Viti or 

 Feejee Islands, pp. 285-352. 



VII. Pacific Ocean, — 1, General view of volcanic action ; 2. Origin 

 of some peculiarities in the lithological character of the Islands ; 3. 

 Origin of Valleys; 4. Changes of level as indicated by the distribution 

 of Coral reefs, and other evidences ; 5. On the general arrangement ot 

 land in the Pacific ; 6. Origin of the general features of the Pacific 

 and of the Globe, pp. 353-436. 



VIII. On New Zealand, particularly the vicinity of the Bay of Is- 

 lands, pp. 437-538. 



