REVIEWS. 133

Nouveau Dictionnaire Veterinaire: Medecine, Chirurgie, Therapeutique, Legislation Sanitaire, et Sciences qui s'y Rapportent. Par les Drs Fontaine, Veterinaire Principal de L' Armee, et H uguier, Veterinaire­Major de 1st Classe de L'Armee, Members Correspondants de la Societe Centrale de Medecine Veterinaire. Paris: Librarie J.-B. Bailliere et Fils, 1921.

IT can hardly be necessary to say that this work is not a dictionary in the ordinary sense of that word, but a cyclopredia of veterinary science in which the different subjects are dealt with in lexicographical order. It is thus tbe equivalent of a whole series of manuals or text-books, each dealing separately with some particular branch of the science. vVorks of this kind have the disadvantage that on many subjects they soon become out of date, but there can be doubt of their great convenience as works of reference, especially to the busy practitioner.

The work when complete will form two volumes of 1200 pages with 600 illustrations. It is being published in fasciculi of 80 to 100 pages (price 5 francs each). The first appeared in November 1920, and the sixth has now been issued. Anatomy, Physiology, and Zootechny are included among the accessory subjects, but Medicine and Surgery receive the greatest attention. A perusal of a number of the articles taken at random leaves a very good impression. They are concisely written, and for the most part well up to date. The work reflects credit on both editors and publishers, and certainly deserves a large scale.

Mites Injurious to Domestic Animals (With an Appendix on the Acarine Disease of Hive Bees). By Stanley Hirst, Assistant Keeper, Depart­ment of Zoology, British Museum (Natural History). London: Printed by Order of the Trustees of the British Museum, 1922. Price 3S.

THIS small work forms one of the Economic Series of publications issued by the Trustees of the British Museum, and its principal merit lies in the illustrations, the majority of which are original. As they occupy more than half of the 104 pages it will be understood that the text does not pretend to deal adequately with the diseases caused by acari, especially from the thera­peutic point of view. The illustrations are very good, and for the identifica­tion of different species of parasites may almost be said to make verbal description unnecessary. Both students and practitioners will find the work very useful.