556 SAMUEL VAUGHAN [1785. 



Inclosed you have Mr. Boardley's summary of Courses of Crops 

 in Maryland, &c, as also an Address from the Philadelphia Society 

 for Promoting Agriculture, of which you have been chosen an 

 honorary member ; the certificate of -which I should have inclosed, v 

 but that the secretary is not to be found. 



I am, sir, your assured friend and servant, 



Sam. Vaughan. 



Philadelphia, 14th May, 1785. 



Sir : 



Conformable to your letter of 5th inst., I sent an advertisement 

 to the papers,* and hope it will have the desired effect ; but if not, 

 as I think it calculated to promote botanical knowledge, hitherto 

 but little attended to in the New World, it shall not want the neces- 



* In the "Pennsylvania Mercury and Universal Advertiser," published by 

 Daniel Humphreys, in Dock Street, May 13, 1785, is the following advertisement, 

 no doubt the one here referred to : 



TO THE PUBLIC. 



Few countries are richer in botanical productions than America ; but in no 

 country has less attention been paid to collecting an account of them. Natives 

 and foreigners have frequently had occasion to lament the want of some work, 

 which might serve as a register of past discoveries, and lead to future ones. It 

 cannot be compiled at once, or by one man ; but it is the duty of every one to 

 contribute what he can towards it. 



Influenced by this motive, and at the request of many respectable persons, 

 proposals are made for printing by subscription, 



AN AMERICAN BOTANY, 



Or an Alphabetical Catalogue and Botanical Description of the Forest Trees, 

 Shrubs, &c, natives of the United States, arranged according to the Linnsean 

 System, with the English names also annexed, and an account of the appearance, 

 manner of growth, &c, of the different species and varieties, with some hints of 

 their use in medicine, manufactures, dyes, and domestic economy, with proper 

 indexes. The whole compiled from actual observation by Humphry Marshall. 



It will be printed in 8vo., and put into the press as soon as a sufficient number 

 of copies are subscribed for to pay the expense of printing ; the author having no 

 view of private emolument. 



Price to subscribers 3s. 9d. Money to be paid on subscribing. Subscriptions 

 taken by Messrs. Hall and Sellers, Crukshank, Bradford, and Humphreys. 



Philadelphia, May 11th, 1785. 



