Their Practical Application in Dyeing Cotton, Wool, and Silk; the Principles of the Art of Dyeing and of the Distillation of Coal Tar, with a Description of the most Important New Dyes now in use. By Prof. H. Dussauce. 12mo., $3.00

DYER AND COLOR-MAKER’S COMPANION:

Containing upwards of two hundred Receipts for making Colors, on the most approved principles, for all the various styles and fabrics now in existence; with the Scouring Process, and plain Directions for Preparing, Washing-off, and Finishing the Goods. In one vol. 12mo., $1 25

EASTON.A PRACTICAL TREATISE ON STREET OR HORSE-POWER RAILWAYS:

Their Location, Construction, and Management; with General Plans and Rules for their Organization and Operation; together with Examinations as to their Comparative Advantages over the Omnibus System, and Inquiries as to their Value for Investment; including Copies of Municipal Ordinances relating thereto. By Alexander Easton, C. E. Illustrated by 23 plates, 8vo., cloth, $2.00

ERNI.COAL OIL AND PETROLEUM:

Their Origin, History, Geology, and Chemistry; with a view of their importance in their bearing on National Industry. By Dr. Henri Erni, Chief Chemist, Department of Agriculture. 12mo., $2.50

ERNI.THE THEORETICAL AND PRACTICAL CHEMISTRY OF FERMENTATION:

Comprising the Chemistry of Wine, Beer, Distilling of Liquors; with the Practical Methods of their Chemical Examination, Preservation, and Improvement—such as Gallizing of Wines. With an Appendix, containing well-tested Practical Rules and Receipts for the manufacture, etc., of all kinds of Alcoholic Liquors. By Henry Erni, Chief Chemist, Department of Agriculture. (In press.)

FAIRBAIRN.—THE PRINCIPLES OF MECHANISM AND MACHINERY OF TRANSMISSION: