BOTANICAL INFORMATION. 207 



mil-able Genera Plantarum, both in external form, and in 

 interior arrangement. 



" Many of the most distinguished botanists of Germany, as 

 for example, Messrs Endlicher, Link, Kunth, Hornschurch, 

 Bauer, Nees von Esenbeck, and Klotzsch, liave had the 

 goodness to promise their assistance to the work, and have 

 partly undertaken the elaboration of particular families. 

 Other able colaborators are confidently expected ; and, 

 supported by such aids, and by ready access to extensive 

 libraries, Dr Walpers is warranted in believing he shall pro- 

 duce a very useful work. He wishes it to be understood, 

 however, that all the plants described in the above works 

 will not be received, but imder the species those works will 

 be quoted. All the newer species will be designated in such 

 a manner, that their synonymy, their native country, and the 

 complete citation of the work where it is described, will be 

 given. If the works referred to are very rare, or expensive, 

 or not to be procured in the book-trade, as for example, 

 Boissiers JLlenchus. the diagnosis will be given in short but 

 intelligible characters. All the useful figures known to the 

 author will be quoted. 



*' Dr Walpers earnestly solicits communications of books 

 or information that may assist him in this laborious under- 

 taking." 



PROSPECTUS. 



Induced by the advantageous offers which a Swiss colo- 

 nist, long settled in the island of Java, has engaged himself 

 to fulfil, the subscriber has decided on visiting and exploring 

 the rich natural productions of that fine country. It is his 

 intention on arriving at Batavia to proceed immediately to 

 the residence of his countrymen, thirteen] leagues distant 

 from the coast, and there to remain for several years. After 

 exploring the vicinity of this plantation, he will diverge to 

 greater distances, and thus acquire a knowledge of the whole 

 country, it being his object to penetrate the least visited dis- 



