Geology and Natural History. 195 



8. JPaldozoische Seesterne Deutschlands. I. Die echten Asteri- 

 den der rheinischen Grauwacke ; Friedrich Schondorf, Palse- 

 ontographica, 56, 1909, pp. 38-112, pis. 6-11. — Here are described 

 in detail 12 species of Lower Devonic starfishes of the family 

 Xenasteridse. These are grouped in the genera Xenaster (4 

 species), Spaniaster (1), Agalmaster n. gen. (3), Rhenasler n. gen. 

 (1), Trimeraster n. gen. (1), Eifelaster n. gen. (1), and Asterias. 

 The drawings are somewhat diagrammatic but illustrate the 

 characters far better than would photographs. 



In all the genera the ambulacrals are directly opposite one 

 another and do not alternate. The ambulacrals and adambula- 

 crals are also opposite each other. The mouth opening is 

 bounded by 5 pairs of mouth plates and 5 pairs of slightly modi- 

 fied ambulacrals. No ocular plates are preserved, according to 

 the author; the reviewer has seen none in these old starfishes 

 before the time of the Lower Cariboniferous. c. s. 



9. La Vallee de Binn ( Valais). ~@tude geographique, geolo- 

 gique, miner alogique et pittoresque ; par Leon Desbuissons. 

 Pp. viii, 324 ; 51 illustrations, etc. Lausanne, 1909 (G. Briclel & 

 Co.). — This is a popular work on a mineralogical locality which 

 occupies a unique position in the interest of the occurrence and 

 the almost inexhaustible variety of new and rare species which 

 it has afforded. These facts are briefly summarized here, and 

 many illustrations give an admirable idea of the scenery of the 

 valley. 



10. Catalogue of the Fossil Bryozoa in the Department of 

 Geology, British Museum of Natural History. The Cretaceous 

 Bryozoa, Volume II ; by J. VV. Gregory. Pp. xlviii, 346, 9 

 plates, 75 figures. — The first volume of this catalogue was pub- 

 lished in 1899 and the appearance of the present volume has 

 been delayed in consequence of the retirement of the author 

 from the staff of the British Museum. In the years which have 

 intervened a large amount of material has been added to the col- 

 lections of the Museum, so that the whole work has been expanded 

 and when complete will embrace a third concluding volume. It 

 is expected that this will be shortly prepared by Mr. W. D. 

 Lang, who succeeded Dr. Gregory as Assistant in charge of this 

 section of the Museum. 



11. A Hand-List of the Genera and Species of Birds \Nomen- 

 clator Avium turn Fossilium turn Viventium] ; by R. Bowdler 

 Sharpe. Volume V. Pp. xx, 694. — This volume of the British 

 Museum Handlist of Birds deserves to be especially noted, 

 since it completes a large and most important labor begun in 

 1898. The author and those who have worked with him deserve 

 the congratulations of zoologists for what they have done in this 

 way to advance the study of ornithology. 



12. Physiologisohe Pflanzen-Anatomie / von Dr. G. Haber- 

 landt. Pp. xviii, 650. Vierte Auflage. Leipzig, 1909 (Wil- 

 helm Engelmann). — This is the fourth and enlarged revision of a 

 very important work. A quarter of a century has passed since 

 Professor Haberlandt, then as now at Graz, published the first 



