THE BOTANISTS OF PHILADELPHIA. 119 



nus, Tilia, Ulmus, Fagus, Betula, Carpinus, Platanus and 

 Pinus. On these grounds are ponds well stocked with 

 beautiful fish and water plants, among these last is the 

 Nymphaja odorata, with its showy white flowers, yellow 

 anthers and sweet fragrance. 



" Mr. M'Mahon was an indefatigable arborist, and his 

 garden now exhibits a row of native oaks, planted by him, 

 containing thirty varieties; being all the kinds that he 

 could collect in his day, either with money or zealous 

 exertion. The willow-leaved oak is the most conspicuous,, 

 and forms a very handsome conical tree. 



" Perhaps we owe as much to the late Mr. M'Mahon, as 

 a horticulturist, as to any individual in America. Besides 

 his efforts in collecting and propogating, we are indebted to 

 him for his excellent book on " American Gardening," 

 which has passed through many editions."' 



WILLIAM BALDWIN. 



In the south-eastern corner of Pennsylvania, just north 

 of the filmed Mason and Dixon line, lies the county of 

 Chester, picturesque, historic and fertile, but specially 

 prolific for a century past in cultivators of botanical science. 

 And in the township of Newlin, in this same county, on the 

 29th of March, 1779, was born William Baldwin, f the 

 subject of this sketch. His father, Thomas Baldwin, was a 

 member and an approved minister of the Society of 

 Friends. He gave to the son such rudimentary education 



*1806. The American Gardener's Calendar; Adapted to the Climates and Sea- 

 sons of the United States. By Bernard M'Mahon, Xursery, Seedsman and Florist, 

 Philadelphia. Printed by B. Graves for the author. Octavo pp., v, 648, index. 



11883. J. H. RKDFIELD, Botanical Gazette, VIII: 233. An engraving of W. 

 Baldwin appears as frontispiece in DARLINGTON'S Reliquice Baldwiniance, from a 

 painting by C. W. Peale on stone, by a Xewsam, Philadelphia, 1843. 





