218 IfOTlCES OF BOOKS. 



the naturalists to the Arctic Expedition, to guide him in collecting 

 plants during the expedition. 



The number of visits paid during the year to the Herbarium for 

 scientific inquiry or research was 1118. The following foreign botanists 

 may be specified as having used the Herbarium in prosecuting their 

 various studies : — Professor Maximowicz, of St. Petersburg, for his 

 monographs of Rheum and Chrysosple7iiuni ; Professor lleichenbach, 

 of Hamburg, for his works on Orchidea; ; M. De CandoUe, of Geneva, 

 for his memoir on the Meliacea ; Count Sohns-Laubach, Professor at 

 Strasburg, for his investigations on Raffleitiacea: ; Dr. Rostafinski, of 

 Strasburg, for his work on Fungi ; Professor Crepin, of Brussels, for 

 his investigations on Rosacece, and on Fossil Plants ; and M. Marchal, 

 of Brussels, for his monograph of the Araliacece. Of British botanists 

 the following may be specified : — Professor Bentley, in connection 

 •with the important work on the " Plants employed in Medicine," of 

 which he is joint author with Dr. Trimen, an officer in the Depart- 

 ment, and the illustrations of which are for the most part drawn by 

 Mr. Blair from specimens in the Herbarium ; Mr. J. Miers, for his 

 monograph of the Barringtoniece ; Mr. W, P. lliern, for the Ruhiacea 

 and ComjyositiX of the " Flora of Tropical Africa " ; !Mr. George Bent- 

 ham, for the " Genera Plantarum " ; Dr. Braithwaite, for his work on 

 Mosses ; Mr. B. D. Jackson, for his investigations into the history of 

 Botany, and into the critical plants of the British Flora; the Rev. J. 

 M. Crombie, for his work on the Lichens of Britain ; Mr. J. F. Duthie, 

 for the Myrtacece of the " Flora of British India " ; Mr. T. Howse, for 

 the British Fungi ; Mr. E. M. Holmes, for his investigations relating 

 to medicinal plants ; Mr. F. M. Webb, for his study of critical 

 British plants ; and Mr. E,. A. Pryor, for his Flora of Hertfordshire. 



li^oticc^ of 25ooh^. 



Genera Rlaniartim ad exemplaria imprimis in herbariis Kewensibus 

 eervata definita ; auctoribus G. Bentham et J. D. Hookee. 

 Vol. ii., containing the Gamopetalous Dicotyledons. London : 

 Lovell lleeve. 187o— 1876. (pp.1279.) 



The second volume of this great and laborious work has recently been 

 completed by the publication of the second part, containing the 

 remainder of the Gamopetalous Orders, the whole of which are now 

 comprehended in this one volume. The first part was published in 

 April, 1863, and contained the two great Families i?;^^/'^^^^? and Com- 

 posite, and the smaller allied Orders. This second part bears the date 

 " April, 1876 " (but does not appear to have been actually published 

 till the middle of May), and besides containing the remaining Gamo- 

 petalae, has also some addenda of recently- published genera, &c., and 

 an index to the whole volume. 



The Orders of Gamopetala) are here forty-five in number, several 

 small ones being reduced to tribes. They are arranged under ten 

 cohorts, grouped into three scries ; the first with an inferior ovary, the 

 Becond with the ovary usttally superior and the carpels more than two. 



