On the geographical distrilnitioii of plants in the country north of the 49th parallel 

 of latitude. 



{Richardson's Journal of a boat voyage, etc., II, pp. 264-353, London, 1851; 



New York ed. pp. 408-471, 1852.) 



Remarks on the climate and vegetable productions of the Hvidson's Bay countries. 

 (Edinburgh Phil. Jour., 1825. Reprinted, 35 pp.) 



Riddell, John L. 



A synopsis of the flora of the western states. 

 ii6 pp. Cincinnati, 1835. RF-R 543 



(Western Jour. iMed. & Phys. Sciences, Vol. 2, no. 3, 1834, pp. 329-374; 

 no. 4, 1835, pp. 489-556.) 



Catalogus florae Ludovicianae. 



(N. O. Med. cS; Surg. Jour. Till, pi>. 734-764, New Orleans, 1852.) 



Catalogue of the ]>lants growing spontaneously in Franklin Countv, central Ohio. 

 (Western Med. Gazette, II, pp. 116-120; pp. 154-159, 1834.) 



Supplementary catalogue of Ohio plants, 

 pp. Cincinnati. 1836. 



Rikh, Martin Albert, and Heim, A. 

 Sommerfahrten in Gronland. 



224 pp. 16 pis. Frauenfeld, 1910. 



Ringle, William Edgar, and Kenoyer, Leslie Alva. 



Student's Ijotany of eastern Kansas. 

 213 pp. Topeka, 1903. RH-R 581 



Rink, H. 



Danish Greenland. 



pp. London. 1877. 



(Greenland &oth, p]i. 409-428, by R. Brown Campster. ) 



Naturhist. beskrivelse af Gronland. 

 ]i]i. Kjobenhavn, 1857. 



Roberts, Mary. 



-Sketclies of animal and vegetable products of America. 

 285 pp. London, 1839. R-R 646 



Robin, C. C. 



X'oyages dans Tinterieur de la Louisiane. etc.. suivis de la flore 

 Louisianaise. 



Vol. I. 346 pp. Paris. 1807. 



2, 511 pp. Paris. 1807. 



3. 551 pp. Paris. 1807. 



(Vol. 3, pp. 313-551, Flore Louisianaise.) 

 See, Rafinesque, C. .S. 



Robinson, B. L., and Schrenk, H. von. 



Notes ujion the flora of Newfoundland. 



(Reijrinted from Canadian Record of Science. Jan. & April, 1896, 31 pp.) 



Robinson, John. 



Flora of Essex County. Massachusetts. 

 200 pp. Salem. 1880. RI-R 662 



Notes on the woody plants of Essex County, Massachusetts. 

 38 pp. Salem. 1879. RI-R 662 



(Bull. Essex Institute, Vol. XI, nos. 4-6, 1879.) 



Our trees . . . trees of Salem . . . and Essex County, 

 Massachusetts. 



120 pp. Salem, 1891. 



The native woods of Essex Countv, Massachusetts.* 



(Rei.ort, Peabody Academy of .«cience, 1884, pp. 103-137, 1885.) 



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