226 THE BOTANISTS OF PHILADELPHIA. 



On the ninth he writes : " I have made a note of this dis- 

 covery in the July number of Sillimaris Journal. * * * 

 I think it very interesting." 



In 1860 Mr. Tatnall published a catalogue of the plants 

 of New Castle County, Delaware, and among others he sent 

 a copy to Dr. Gray, who says : '^ I have yours of the 14th 

 and the catalogue. This looks very well, indeed. I see no 

 cause for you to be ashamed of it." July 25th he writes : 

 " In spite of the perfect (mostly) flowers, your plant is 

 Sagittaria calycina Englm. Glad to have it." June 1, 1860, 

 he says : " It would be well, I think, to dry a good number 

 of specimens of P. crispus, a species which no one but your- 

 self has detected in this country." It was collected later by 

 others: Meehan, Hoopes, Porter. December 17, 1861, Dr. 

 Gray relaxes his style in saying : " Your specimen (Lychnis 

 "vespertina) in letter of 14th inst., which I asked for to swear 

 by, came in a condition tempting the profane rather to swear 

 at, being well smashed up." W. T. Sullivant, in a letter 

 November 19, 1860, in a humorous way, says : " Thanks for 

 the two Sagittarias. Phsenogamous botany, though I am 

 sorry to say * * * with me is divided into two parts- 

 one that I knew but have forgotten, and the other I never 

 knew." 



During the season of 1895 Mr. Tatnall, then in his 

 seventy-eighth year, made twenty-eight pedestrian trips 

 through the county, averaging ten miles each, collecting 

 many specimens, very few, however, that were new. 



Mr. Tatnall died suddenly at Wilmington, May 30, 

 1898, in his eightieth year.* 



* See Botanical Gazette, XXVI : 378, November, 189S. 



