Steudener, Arnold. 



Das symbol des zweiges in einem antiken und in einem modernen gebrauche. Program. 

 34 pp. Halle, 1857. 



Steuer, Adolf. 



Leifaden der planktonkunde. 



382 pp. 1 pi. Leipzig, 1911. 



Planktonkunde. 



72Z pp. 1 pi. Leipzig, 1910. 



Steven, Christian von. 



Verzeichniss . . . der taurischen wildwachsenden pflanzen. 

 412 pp. 2 pis. Moskau, 1857. 



(Bull. Soc. Imp. Nat. Moscou, Tom. 29, 30.) 



Stevens, Frank Lincoln. 



The fungi which cause plant disease. 



754 pp. New York, 1913, HJ-S 844 



Stevens, Frank Lincoln & Hall, J. G. 



Diseases of economic plants. 



513 pp. New York, 1910. ED-S 844 



The genus Meliola in Porto Rico. 



86 pp. 6 pis. Urbana, 1916.* 



(111. Biol. Monographs, Vol. 2, no. 4.) 



Stevens, William Chase. 



.Introduction to botany. (Key and flora.) 



127 pp. Boston, 1902. in BA-S 846 



• 127 pp. Boston, 1909. in BA-S 846 



Introduction to botany. 



436 pp. Boston, 1902. BA-S 846 

 436 pp. Boston, 1904. 

 436, 127 pp. London, 1903. BA-S 846 

 436 pp. Boston, 1909. BA-S 846 



Plant anatomy. 



349 pp. London, 1907. C-S 846 



2 ed. 379 pp. London, 1910. 



3 ed. 399 pp. Philadelphia, 1916. C-S 846 



Stevenson, John. 



Hymenomycetes Britannici. British fungi. 



Vol. 1, 372 pp. London, 1886. HIl-S 847 

 2, 336 pp. London, 1886. HIl-S 847 



Mycologica scotica. The fungi of Scotland. 

 443 pp. Edinburgh, 1879. HIl-S 847 



Stevenson, W. 



Trees of commerce. 



226 pp. London, [1899]. JH-S 848 

 Rev. ed. 286 pp. London, 1908. 



Stewart, F. L. 



Sorghum and its products. 



240 pp. Philadelphia, 1867. JF-S 849 



Stewart, J. 



Hortus cryptogamicus edinensis. 



Ser. 1, no. 1, Edinburg, 1819. 



219 



