16 



/ 



I m 



succeeded in so modifying this method that the prepared fungi ex- 

 hibit and retain for an indefinite period the size, form, color and all 

 other essential characteristics of the living plant; and, carrying his 

 experiments still further, he has discovered a method of fixing the 

 fallen spores durably on paper so that collectively they form a per- 

 fect negative of the gills in the case of an Agaric or of the pores in 

 the case of a Boletus, and exactly imitate a fine engraving. European 

 mycologists who have seen these preparations state that the speci- 

 mens, from every point of view, leave little to be desired. The full 

 details of this new process were generously made known by its author 

 last year in a paper read before a German scientific society, and were 

 afterwards published in its proceedings.* A copy of this publication 

 having come into my hands, 1 propose in subsequent numbers of the 

 Bulletin to publish a translation (perhaps somewhat condensed) of 

 Herr Herpell's paper for the benefit of those who may not have access 

 to the original. Having, with these {ew preliminary remarks, intro- 

 duced the author, I shall hereafter allow him to speak for himself. ' 



. I W. R. G. 



^ a "^^^ § i6. Contributions toward a List of the State and Local Floras 



of the United States. CV^ ' ^ ^ 7 > 



II. THE MIDDLE STATES. 



^c^ Flora of the Northern and Middle Sections of the United States, 



north of Virginia. By John Torrey, M.D. (D.) 

 I vol. 8vo, Albany, 1819. 

 L^o Compendium of the Flora of the Northern and Middle States ; con- 

 taining generic and specific descriptions of all the Plants, exclu- 

 sive of the Cryptogamia, hitherto found in the United States 

 •north of the Potomac. By John Torrey, M.D. (D.) 

 i2mo, pp. 403. New York, 1826. 



5^ Botany of the Northern and Middle States, north of Virginia By 



L. C. Beck, M.D, (D.) 



i2mo, pp. 471. Albany; 1833. 

 Musci Appalachiani ; tickets of specimens of Mosses collected mostly 

 in the Eastern part of North America. By C. F. Austin. (CJ 

 8 vo, pamph. pp. 92 . (Supplement I, 16 pp.) ^Closter, 1870. 



New York. » 



S^^ Catalogue of Plants indigenous to the State of New York. By 



Jacob Green. (A.) ' 



^ In Trans. Soc. Promot. Useful Arts. Albany, 1814. 

 iTu Catalogue of the Medicinal Plants, indigenous and exotic, grow- 

 ing in the State of New York. By Charles A. Lee, M.D. 

 8vo, pamph. pp. 64. New York, 1840. 

 r^" Catalogue of the Plants of the State of New York, of which specimens 



are preserved in the Cabinet at Albany. By John Torrey, 



JVL.U. (A.) 



In 2d Ann. Rep. of Regents on Cabinet. Albany, 1849. 

 jj ^s Catalogue of Plants indigenous to the State of New York. (Ran- 



unculaceae to Melastoraaceae). By John Torrey, M.IX (B.) 



S V 



rrr * Y^J'^^'^'^^^^^S^'^^^ naturhistorisc'un Vereins der p,etissischen RlieinUuJe uiid 

 WestfaUns. IV Folge. 7 Jahrgang. Bonn, 1880. 



