Bulletin of the Essex Institute, Vol
i m a BULLETIN OF THE ESSEX IlsTSTITUTE]. Vol. 18. Salem: Jan., Feb., Mar., 1886. Kos. 1-3. MR. TOPPAN'S NEW PROCESS FOR SCOURING WOOL. JOHN RITCHIE, JR. Read before the Essex Institute, March 15, 1886, Ladies and Gentlemen^ — Two years ago, almost to a day, I had the pleasure of discussing before you what was at that time a new process of bleaching cotton and cotton fabrics, — process which, since that day, has been developed with steadily increasing value by a company doing business under Mr. Top- pan's inventions. This evening [March 15] I desire your attention to a consideration of the effects of the same solvent principle upon that other great textile material, wool. The lecture of two years ago was illustrated by the pro- cesses themselves, practically performed before your eyes. It is our intention this evening to follow out the same plan and to illustrate and, so far as may be, prove by experiment the statements which shall be made. It is our intention to scour upon the platform various speci- mens of wool, and as well, to dye before you such colors as can be fixed within a time which shall not demand, upon your part, too much of that virtue, patient waiting. Mr. Toppan, who needs no introduction to this audience, will undertake, later in the evening, the scouring of wool, and Mr. Frank Sherry, of Franklin, has kindly offered to assist in the work of dyeing. To those of you who are not familiar with the authorities in this country, in the work of dyeing, I need only say, that Mr.
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