198 Literary and Philosophical Intelligence. 



dates for the premium ; informing them, at the same 

 time, that communications on other subjects which come 

 within the general or particular views of the donor, will 

 not be excluded from the competition. It is also ne- 

 cessary to be observed, that all communications for the 

 extra premium must be made and transmitted agreeably 

 to the form and manner prescribed in the conditions for 

 the original premium. ^ 



The objects towards which the Society would direct 

 the attention of candidates are, 



1. The best experimental essay on native American 

 permanent dyes or pigments, accompanied by specimens. 



2. The best means of navigating our rapid rivers 

 against the stream. 



3. The best essay on the general natural history of 

 the ranges of American mountains in the country east 

 of the river Missisippi. 



4. The best essay on the natural history and chemical 

 qualities of the hot and warm springs of tlie United- 

 States, or of any one of them. 



ADAM SEYBERT, 

 J. R. COXE, 

 T. C. JAMES, 

 T. T. HEWSON, 



Secretaries. 

 ; Philadelphia, March, 1806. 



