On Gypsum. 24 i 



moderate quantities,) ploughed in, or compost as a 

 top-dressing. With such auxiliaries, the plaster works 

 vigorously ; either when first strewed, or on repeti- 

 tions ; however frequent. Without them, it lies 

 inert and useless. The fact is well established ; be 

 the theory what it may. Anomalous exceptions some- 

 times occur. But these do not shake the general rule ; 

 which is, in practice, as much in course, and as com- 

 monly successful, as any other operation in husbandry. 



R. Peters. 

 September 25, 1813. 



TOL. III. Hh 



