Formic Acid and its Value to the Textile Industry.

More practical dyeing has been carried out during the past year than heretofore, owing to the greatly increased equipment which was installed last year. The work in Industrial Chem istry has been greatly increased and many chemicals manufactured and new experiments carried out in the newly equipped Industrial Laboratory.

PHILADELPHIA TEXTILE SCHOOL.

DEPARTMENT OF CHEMISTRY, DYEING AND PRINTING.

The Art of Dyeing is very old, dating back to hundreds of years before the Christian Era. The Science of Dyeing is new born and still in its childhood.

Solomon said, "There is nothing new under the Sun," but at that time there was no Coal-tar Color Industry and dyestuff manufacturers were not producing almost daily, substances, the like of which, did not occur in nature. At the present day such, however, is the case.

Therefore in order to keep abreast of the times, the man who is to have charge of color productions must be educated along the same general lines as the man who makes the dyes that he uses. Should the dyer or printer not have this scientific braining, he will constantly meet problems and have bad results, a satisfactory explanation for which he will not be able to give.

Moreover, it is not only necessary for the dyer to be able to produce a given shade but to do so in the most economical manner. To do this requires the testing and valuation of all products used and thus necessitates the services of a competent chemist.

It is the object of this School to give such a training; to give a sound fundamental education in the principles of pure, analytical, technical and applied chemistry and in the most approved methods of color production from the standpoint of the dyer, printer, manufacturer and purchaser.

This object is accomplished by lectures, recitations and an extensive amount of laboratory work in each subject pursued, together with practical dyeing and printing in the dye-house of the School which is unusually well equipped with machinery for the dyeing of yarn, warps, raw-stock and piece-goods. The printing laboratory is also well appointed and two roller-printing machines and a variety of engraved rollers are at the service of the students.

The course of study covers a period of three years and is outlined as follows:

FIRST YEAR-FIRST TERM.

Chemistry 1-General Inorganic.

Chemistry VI-Chemical Calculations.

Dyeing I-Physical and Chemical Properties of the Textile Fibres.

Dyeing II-Technology of Scouring and Bleaching.
Dyeing III-Principles of Dyeing-Elementary.

FIRST YEAR-SECOND TERM.

Chemistry II-Qualitative Analysis.

Chemistry VI-Chemical Calculations.

Dyeing III-IV-Principles of Dyeing-Elementry.

Dyeing V-Principles of Shade Compounding and Matching.

SECOND YEAR-FIRST TERM.

Chemistry III (A)—Quantitative Analysis—Gravimetric. Chemistry IV-Organic-Aliphatic Series.

Chemistry X (A)-Textile Chemistry-Analysis of fibres, yarns and fabrics.

Dyeing VI-Color Mixing and Spectroscopy.

Dyeing VII-Principles of Dyeing-Intermediate.