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146 describes very clearly and concisely the origin of the Court of Chancery and the general course of its development. As the book is purely introductory, no attempt is made to mark out the extent of the jurisdiction of the court. For this reason it is well adapted for circulation outside the ranks of the legal profession. It is not expected, of course, that the book will aid the lawyer in his practice, but the author hopes that it may be of use to such as desire to refresh their memories as to the matters touched upon.

G. C.

. By James Johnson and J. Henry Johnson. New York: Longmans, Green, & Co. Sixth edition, 1890. 8vo. Pages xxxii and 534.

This edition of a book already well and favorably known in its special field brings down to date all the provisions, legislative and judicial, governing the law and practice of patents for inventions in Great Britain. In the case of a book which has run through so many editions as this, extended criticism is uncalled for. In brief, it may be said that the book combines in an admirable manner the practical and theoretical aspects of the subject, each being readily separable from the other, for the purposes of examination of special topics, by means of the copious and well-arranged index. The wish of the authors that the book may prove of value, not only to inventors and patentees, but to the legal profession at large, seems abundantly realized -indeed, one of the chief merits of the book would seem to be its ready adaptability to the needs of the lawyer suddenly called to advise upon the patentability of an invention.

Among the more important of the numerous and valuable appendices are those containing the English legislation touching the subject of Patents, from the old Statute of Monopolies down to the present time, the International Convention and Protocol for the Protection of Indus- trial Property, the Patent Rules of iS90, and a careful Digest of the Patent Laws of Foreign Countries and the British Colonies.

BOOKS RECIVED.

. By Joseph H. Vance. Ann Arbor: Argus Book and Job Rooms, 1890. Pages xxi and 63

. By D. M. Kerly, M.A., LL.B. Cambridge, England: at the University Press, 1890. 8vo. Pages 303.

. By John Adams. Eighth edition, by Robert Ralston. Philadelphia: T. & J. W. Johnson & Co., 1890. 8vo. Pages lxix and 839.

. By C. H. Blackburn. Cincinnati: Robert Clark & Co., 1890. 8vo. Pages 68.

, and What Legislation, if Any, is Needed for their Protection. By Eugene D. Hawkins. Albany; Weed, Parsons & Co., 1890. Pages 210.