│ Seven Months ending January │ January │ 1912 1913 │ 1912 1913 │ Corkwood, Free: $1,518 $1,195 │ $19,795 $22,393 Corks mfrd., Dutiable: 209 1,086 │ 3,078 2,170 │ And the periods ending December, 1913 will be of interest also. IMPORTS December │ Twelve Months ending December │ 1912 1913 │ 1911 1912 1913 │ Corkwood, Free: │ $300,253 $468,937 │ $3,819,651 $3,182,131 $3,616,177 Corks mfrd., Dutiable: │ $164,711 194,457 │ 2,070,672 2,440,399 2,370,527 │ EXPORTS │Twelve Months ending December │ December │ 1912 1913 │ 1912 1913 │ Corkwood, Free: $2,960 — │ $34,404 $25,091 Corks mfrd., Dutiable: — $8,335 │ 5,552 5,392 │ A SELECTED LIST OF BOOKS ON CHEMISTRY AND CHEMICAL TECHNOLOGY _Published by_ D. VAN NOSTRAND COMPANY 25 Park Place New York =American Institute of Chemical Engineers.= Transactions. 8vo. cloth. Issued annually. Vol. I., 1908, to Vol. VI., 1913, now ready. each, =net, $6.00= =Annual Reports on the Progress of Chemistry.= Issued annually by the Chemical Society. 8vo. cloth. Vol. I., 1904, to Vol. X., 1913, now ready. each, =net, $2.00= =ASCH, W., and ASCH, D. The Silicates in Chemistry and Commerce.= Including the exposition of a hexite and pentite theory and of a stereo-chemical theory of general application. Translated, with critical notes and additions, by Alfred B. Searle. Illus. 6-3/4 x 10. cloth. 476 pp. =net, $6.00= =ASHLEY, R. H. Chemical Calculations.= Illustrated. 5-1/4 x 7-1/2. cloth. 286 pp. =net, $1.50= =BAILEY, R. O. The Brewer’s Analyst.= Illustrated. 8vo. cloth. 423 pp. =net, $5.00= =BARKER, A. F., and MIDGLEY, E. Analysis of Woven Fabrics.= 85 illustrations. 5-1/2 x 8-3/4. cloth. 319 pp. =net, $3.00= =BEADLE, C. Chapters on Papermaking.= Illustrated. 12mo. cloth. 5 volumes. each, =net, $2.00=