INDIGO. 



To George Chalmers, Esq. 



Remarks on some Specimens of East-India Indigo, 

 Remarks The indigo I received from you was contained 



East-India . p i • i tit 



Indigo. m three papers, one oi which w as marked " Lt. 



Rogers," the others " No. 1 & 2 Flora." Though 

 the quantity of the whole was small, I have re- 

 turned you a little of each in the original papers, 

 that you may occasionally recur to them in the 

 following experiments. 



In consequence of not having a sufficient quan- 

 tity to admit of a great variety of separate trials 

 upon each specimen, and that too great a depen- 

 dence might not be placed on my own opinion, 

 I consulted a merchant who sells large quantities 

 of indigo, also another person who is an eminent 

 dyer, that we might ascertain the comparative 

 value of the samples you sent, by the usual means 

 of the sight, weight, trial by the nail, and other 

 methods which I cannot easily explain to you by 

 letter, but of v^hich any of the London brokers 

 will inform you. 



Mr. John Kenyon, of Lawrence Pountney Lane, 

 is in this line of business ; he is very intelligent. 

 If you make use of my name to him he will rea- 

 dily assist you. 



Lieutenant Rogers' samples appearing to con- 

 sist of two different kinds, I separated them, and 



marked 



