CLASSIFIED LIST OF REFERENCE WORKS 705 
Molisch, H. Mikrochemie der Pflanze. 2te Aufl. F. Fischer, Jena, 1921. 
Schneider, H. and A. Zimmermann. Die botanische Mikrotechnik, ein Hand- 
buch der mikroskopischen Arbeitsverfahren. 2te Aufl. G. Fischer, Jena, 
1922. 
Strasburger, E. Das botanische Prakticum. 7te ed. Rev. by Max Koernicke. 
G. Fischer, Jena, 1923. 
Zimmermann, A. Botanical microtechnique. Transl. by J. E. Humphrey. 
H. Holt and Co., New York, 1893. 
PLANT TAXONOMY 
Abrams, L. An illustrated flora of the Pacific States in 3 volumes. Vol. I, 
Ferns to Birthwirts. Stanford University Press, 1923. 
American Joint Committee on Horticultural Nomenclature. Standardized plant 
names. Salem, 1923. : 
Beal, W. J. Michigan Flora. Mich. Agr. Col., 1905. 
Britton, N. L. and Addison Brown. An illustrated flora of the northern United 
States, Canada and the British possessions. 2nd ed. C. Scribner’s Sons, 
New York, 1913. 
Coulter, J. M., and A. Nelson. New manual ‘of botany of the central Rocky 
Mountain region. (Vascular plants.) American Book Co., New York, 
1909. 
DeDalla Torre, C. G., and H. Harms. Genera siphonogamarum ad systema 
Englerianum conscripta. W. Englemann, Leipsig, 1900-1907. 
Engler, A. and K. Prantl. Die Naturlichen Pflanzenfamilien nebst ihren Gattun- 
gen u. wichtigeren Arten, insbesond. der Naturpflanzen. 23v. W. Engelmann, 
Leipsig, 1900-1925; 2ed., 1930- 
Engler, A., and E. Gilg. Syllabus der Pflanzenfamilien. 4te and 10te Aufl. 
_ Gebruder Borntraeger, Berlin, 1924, 
Engler, A. Das Pflanzenreich regni vegetabilis conspectus. (Issued serially). 
Heft 1-90, 1900-1927. W. Engelmann, Leipsig, 1900— is 
Gerth Van Wijk, H. L. A dictionary of plant names. 2v. M. Nijhoff, 1916. 
Gray, Asa. Gray’s new manual of botany. Handbook of the flowering plants 
and ferns of central and northeastern United States and adjacent Canada. 
7th ed. Revised by B. L. Robinson and M. L. Fernald. American Book 
Co., New York, 1908. 
Gray, Asa. Synoptical flora of No 
& Co., 1886. 
Hitchcock, A. S. Methods of d 
Sons, New York, 1925. 
Hutchinson, J. Families of cpaping hasan 
. Macmillan Co., London, ; . 
eae ed Av, 1893-1895 and 8 supplements, 1911-1936. Clarendon 
rth America. 2ed. Ivison, Blakeman, Taylor 
escriptive systematic botany. John Wiley and 
I. Dicotyledons. II. Monocoty- 
Press, Oxford. 
Jackson, B. D. Guide to the literature of botany. Longmans Green and Co., 
London, 1881. of the fowerlog plants of California. Associated 
Jepson, W. L. A manual ak 
? San Francisco : a 
Le Ryssctetesones' ae Decale. General system of botany, descriptive and 
analytical. Transl. and ed. by J. D. Hooker. London, 1872. 
