18 
United States. Department of Agriculture. Div. Entomology. 
hr of . . . American Economic Entomolo ; e 
by S  ÉRNSHAW. Parts Iv.-v. Continued by N. BANKS. Part VI. 
Washington, 1895-98. 8vo. 
port of the Secretary of Agriculture, 1898. 
Washington, 1898” 8vo. 
Urban, Ignatz. Symbole Antillane seu Fundamenta Flore 
Indiz Occidentalis. i. Fasc. 1. Berolini, ete., 1898. 8vo. 
Varro, M. T. See Merula, G. 
Velenovsky, Sene. Flora bulgarica, ete. Supplementum 1. 
Prag, 1898. 
Warington, Robert. On the distribution of the nitrifying 
gren in the soil. (Journ. Chem. Soc. li. London, 1887. 
vo. 
— The amount = ae acid in the rain-water at Rothamsted, 
etc. (Journ. Chem. Soc. lv.) London, 1889. 8vo. 
—— On Nitrification. Part I [A report of experiments 
made in the Rothamsted ae | (Journ. Chem. Soc. lix.) 
[London, 1891.] 8vo. 
White, Francis Buchanan White. Flora of Perthshire, edited, 
with an introduction and life of the author, by J. W. H. TRAIL 
Edinburgh, 1898. 8vo. 
Whymper, Edward. How to use the aneroid barometer. 
London, 1891. 8vo 
Williams, Frederie Newton. Provisional and tentative list : 
the Orders and Families of British Flowering Plants. 2nd Editio 
[ Brentford, 1898.] 
Willis, John Christopher. Official hand-guide to the Royal 
Botanic Gardens, Peradeniya. Ed. 5. Colombo, 1898. 8vo. 
Ypey, A. See Oskamp, D. L. 
$ 3.—PERIODICALS. 
Including the Publications of Societies. 
Ames, Iowa. Iowa Agricultural S Experiment Station. 
Bulletin, 34, 36. Ames, Iowa, 1897. 8vo 
Bulletin agricole de la Martinique, pos sous le patronage du 
1398]. consultatif du Jardin Botanique, n. 1-2. Saint-Pierre 
8vo 
