83 



In Botan. Gazette, Vol. ii, Logansport, 1876, 

 1 13 List of Plants recently collected on ships' ballast in the neighborhood 



of Philadelphia. By Isaac Burk. (B.) 

 In Proc. Philada. Acad. Sci. iS;;^ 

 Northampton County. 

 V 'f List of the rarer Plants found nearEaston. By L. De Scweinitz. (A.) 



In Amer. Jour. Sci. and Arts, i ser. Vol. iii. 1824. 

 ^^5 Catalogue of Botanical Specimens collected by J. WoUe and A. L. 



Huebener during'the year 1837 in the vicinity of Bethlehem and 

 other parts of Northampton County. (A.^ 

 In Amer. Jour. Sci. and Arts, i ser. Vol. xxxvii. 1839. 

 \\\) Fresh Water Algae collected during three years, mostly within a cir- 

 cuit of about twenty miles around Bethlehem. By Francis 

 Wolle. (C.) 

 In Bullet. Torr. Club. Vol. vi. 1876. 



New Castle County. 



Delaware. 



/i^'? Catalogue of the phaenogamous and filicoid Plants of New Castle 



County. By Edward TatnalL (B.) 

 Pub. by Wilmington Inst. 8vo, pamph, pp. 112. Wilmington, 1840, 

 ^ , ^ Catalogue of the phaenogamous and filicoid Plants of New Castle 



Courity. 

 Pub. by the Botanical Soc. of Wilmington, Pamph. Wilmington, 



1844. 



Maryland. 

 Baltimore County, 

 ^^ ^ Catalogue of phaenogamous Plants and of Ferns, native and natural- 

 ized, growing in the vicinity of Baltimore.' By Wm. E. A. Aiken, 

 M.D. (B.) 

 In Trans. Md. Acad. Sci. Vol i, Baltimore, 1837. 



. District of Columbia. 

 I 1.0 Florula Columbiensis. (Anonymous.) 



Pamph. Washington, 1819. 

 i >r Prodromusof the Flora Columbiana. By J. A. Brereton, M.D. (A.) 



i6mo, pp. 86. Washington, 1830. 

 I \ V Flora Columbiana, or Catalogue of Plants growing without cultivation, 



collected by the members of the Potomac-side Naturalists' Club 

 in the District of Columbia and its immediate vicinity, (A.) 

 From Field and Forest. Svo, paraph. Washington, 1876. 

 '** ^ Mosses of the District of Columbia. By Rudolph Oldberg. (A.) 



In Field and Forest. Vol. ii, Washington, 1876. 



W. R. G. 

 N. L. B. 



A 



79. Botanical Literature,— (9/^/- Native Ferns and How to 

 Study them : with Synoptical Descriptions of the North American 

 Species. ByLucien M. Underwood, Ph. D. (Illustrated). Bloom- 

 ington, Ills. i88i. It is remarkable, considering the length of time 

 ferns haye been popular objects of interest and study, that there should 

 not have been until now any low-priced hand-book containing a com- 

 plete account of our native ferns that could be used for tiie determi- 



