1896. SOME NEW BOOKS. 395 



everyone. We do not see the necessity of introducing a vigilance 

 committee into zoological literature. 



The use of undefined names may be considered justifiable by 

 some, but others, who have an equal right to an opinion, refuse to 

 recognise nomina nnda, even if accompanied by the specific form intro- 

 duced into the new genus, such as occur in the works of Fitzinger, 

 Locard, Kuntze, Pomel, Dejean, and others. 



We may take this opportunity of referring any readers interested 

 in nomenclature to the excellent address on the subject delivered by 

 Professor T. Gill as Vice-President of Section F, Zoology, of the 

 American Association, and published in Science of October 23 last. 



The, Prices of Books. 



In consequence of complaints made that in the last number of 

 Natural Science the prices of several of the books reviewed were 

 not given, we must apologise to our readers. At the same time, we 

 wish to state that we do our best to ascertain the prices of all books 

 sent to us. It is not yet every publisher that sees the wisdom of 

 enclosing with the books that he sends us a statement of their price, 

 and the constant writing of letters which this entails adds consider- 

 ably to an editor's duties. One of our correspondents particularly 

 complains that the Geological Survey does not advertise its 

 publications as it should do. The same is the case with other 

 Government establishments, to some of which we have already made 

 successful representations, and we trust that the Director of the 

 Survey may feel inclined to follow their example. The prices of the 

 books reviewed in our last number are : — 



Semon's Travels, 15 marks Tyndall's Glaciers, 6s. 6d. 



Gregory's Jurassic Bryozoa, ios. North's Roman Fever, 25s. 



Other Literature Received. 



Report of the Horn Scientific Expedition, pts. iii. and iv. : Dulau. Problems of Biology, G. 

 Sandeiiian: Sonnenschein. Round the Year, L. C. Miall : Macniillan. Versuch einer Philosophischen 

 Selektionstheorie, J. Unbehaun : Fischer, Jena. Artistic and Scientific Taxidermy and Modelling, 

 M. Browne: A. & C. Black. Royal Nat. Hist., pts. 35 and 36, R. Lydekker: Warne. History of 

 Mankind, pts. 11, 12, and 13, F. Ratzel : Macmillan, 



Submarine Leakage of Artesian Water, R. L. Jack : Proc. R.S. Victoria. La Reproduction et 

 I'evolucion des guepes sociales. Observations sur les Polistes, P. Marchal: Bttll Soc. Zool. 

 France. New Zealand Diptera, P. Marshall : Trans. N.Z. Inst. Intestinal Tract of Birds ; Anatomy 

 ot Hoatzin, P. C. Mitchell: Proc. Zool. Soc. Fatigue in Reading, H. Griffing and S. I. Franz : Psych. 

 Rev. Description of two n. gg. and n. spp. of Australian Fishes ; New Family of Australian Fishes, 

 J. D. Ogilby : Proc. Lin. Soc. N.S.W. The Witwatersrand, G. F. Becker: Nat. Geogr. Mag. 

 Schistosity and Cleavage, G. F. Becker : Journ. Geol. 



Trans. Perthshire Soc. Nat Science, vol. ii. Fac. Agron. Vet. La Plata, Nos. xix., xx., xxi. 

 Essex Naturalist, October, i8g6. Veterinarian, November. Nature, Octoberg22, 29, November 5, 12, 19. 

 Literary Digest, October 17, 24, 31, November 7. Revue Scientifique, October 24,31, November 7, 14. 

 Irish Naturalist, November. Feuille des jeunes Naturalistes, November. Nature Notes, November. 

 Amer. Journ. Sci., November. Nature Novitates, October 19. Amer. Naturalist, November. 

 Science, October 16, 23, 30, November 6. Scott. Geogr. Mag., November. Science Gossip, 

 November. The Naturalist, November. Westminster Review, November. Amer. Geologist. 

 October, November. Botanical Gazette, October. Review of Reviews, November. Pop. Science 

 News, October, November. Knowledge, November. Photogram, November. Psychological Review, 

 November and Supplement iii. L'Anthropologie, September-October. Bull. Geol. Inst Upsala, 

 vol. ii., part 2. Victorian Naturalist, September. 



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