18 Notices of European Herbaria. 



of error, and to secure the collection from injury, it was carefully 

 revised by Prof. Schlechtendal, while under his management, and 

 the specimens attached by slips of paper to single sheets, and all 

 those that Willdenow had left under one cover, as the same spe- 

 cies, are enclosed in a double sheet of neat blue paper. These 

 covers are numbered continuously throughout the herbarium, and 

 the individual sheets or specimens in each are also numbered, so 

 that any plant may be referred to by quoting the number of the 

 cover, and that of the sheet to which it is attached. The ar- 

 rangement of the herbarium is unchanged, and it precisely ac- 

 cords with this author's edition of the Species Plantarum. Like 

 the general herbarium, it is kept in neat portfolios, the back of 

 which consists of three pieces of broad tape, which, passing 

 through slits near each edge of the covers, are tied in front : by 

 this arrangement their thickness may be varied at pleasure, which, 

 though of no consequence in a stationary herbarium, is a great 

 convenience in a growing collection. The portfolios are placed 

 vertically on shelves protected by glass doors, and the contents of 

 each are marked on a slip of paper fastened to the back. The 

 herbaria occupy a suite of small rooms distinct from the working 

 rooms, which are kept perfectly free from dust. 



Another important herbarium at Berlin, is that of Prof. Kunth, 

 which is scarcely inferior in extent to the royal collection at 

 Schoneberg, but it is not rich or authentic in the plants of this 

 country. It comprises the most extensive and authentic set of 

 Humboldt's plants, and a considerable number of Michaux's, 

 which were received from the younger Richard. As the new 

 Enwrneratio Plantarum of this industrious botanist proceeds, 

 this herbarium will become still more important. 



For a detailed account of the Russian botanical collections and 

 collectors, we may refer *o a historical sketch of the progress of 

 botany in Russia, &c., by Mr. Bongard, the superintendent of the 

 Imperial Academy's herbarium at St. Petersburgh, published in 

 the Recueil des Actes of this institution for 1834. An English 

 translation of this memoir is published in the first volume of 

 Hooker's Companion to the Botanical Magazine. A. G. 



