1856.] Herbarium of the Calcutta Botanic Garden. 409 



collectors, variously ticketed and often in great confusion. A quick 

 eye and a ready hand bring the species together, but constant 

 watchfulness is even more essential, in order to prevent errors in 

 localities, the greatest evil to which we are exposed in arranging 

 large collections. It is therefore not at all surprising that Dr. Wal- 

 lich should have occupied four years in this task, and yet been com- 

 pelled to return to India before it was completed. 



Between 1815 and 1828 a large and valuable series of botani- 

 cal drawings was prepared under Dr. Wallich's superintendence. 

 These he took to England with him and they are deposited at the 

 India House, but as no copies were made, we do not as in the case 

 of the Koxburghian drawings possess a corresponding set. Prom 

 among these drawings, Dr. Wallich selected three hundred of the 

 most interesting, which were published under the title of Planted 

 Asiatics Hariores, a superb work alike honorable to the court and 

 to the author. 



The commencement of the present Herbarium of the Calcutta 

 Botanic Garden dates from Dr. "Wallich's return to India in 1832. 

 The separate collections of which it is made up having been incor- 

 porated together, the following list has been prepared to show the 

 origin of the different parts thus combined into one. 



I. — Indian Collections. 



1. A few specimens from the Carnatic collected and named by 

 Dr. Bottler and given by him to Dr. Wallich, who brought them 

 with him from Denmark. 



2. A complete series of specimens collected and dried in the 

 Botanic Garden. Most of these are ticketed by Dr. Wallich, the 

 collection having undergone careful revision by him after his return 

 from Europe in 1833. 



3. A portion of the collection made in Khasia and Assam by 

 the Assam Tea Deputation in 1835-36, consisting chiefly of endo- 

 genous and acrogenous plants. The exogens of this collection were 

 sent home by orders of the Hon'ble Court of Directors about four 

 years ago. 



4. A large collection from the Khasia hills made by collectors 

 m garden employ. This collection contains main duplicates. 



*3 h 2 



