(Office of §t §, gattrwon, 



Botanical Printer, 



Oquawka, III., Marcli, 1886. 



Dear Sir: 



If enough orders are received to pay for an 

 edition, I will undertake the publication of a 



List of North American Plants, 



in large type and on good paper. 



The enclosed sample will show the proposed 

 size of type and page, and quality of paper. 



The catalogue is designed especially for use 

 as a herbarium list, and the genera and species 

 will be printed in alphabetical order — the most 

 convenient for ready reference. The list will 

 be made as full as possible, and a blank below, 

 equal to at least one-tenth the space occupied 

 by species now known, will be left for the ad- 

 dition of new species. 



It seems to me that at least one list, for the 

 purpose of checking the plants in his own 

 herbarium, will be needed by every botanist 

 who has a collection. 



Price, $1.75 per copy. If enough copies are 

 subscribed for in advance to warrant a reduc- 

 tion in the price, it will be made. 



Whether you desire copies of the list or not, 

 please return, soon, the enclosed postal card, so 

 I will know that you have received this circu- 

 lar. Yours, H. N. Patterson. 



