Vi PREFACE. 



the culrivators of science, will still do every thing in his power to 

 promote its high interests, and as he hopes in a better manner 

 ^an heretofore ; but these respectable gentlemen will have the 

 courtesy, to yield something to the reading literary, as well as 

 scientific public, and will not, we trust, be disgusted, if now and 

 then an Oasis relieves the eye, and a living stream refreshes the 

 traveller. Not being inclined to renew the abortive experiment, to 

 please every body, which has been so long renowned in fable ; 

 the editor will endeavor to pursue, the even tenor of his way ; 

 altogether inclined to be courteous and useful to his fellow trav-r 

 ellers, and hoping for their kindness and services in return. 

 Yale College, July 1, 1829. 



The Chemical Text Book for the students of Yale College, 

 and for other students of Chemistry, is now in the press, and 

 may be expected in the month of September. 



