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* * We take pleasure in saying that our chemist states he has used the standardized drillings in standardizing solutions and found them to be very exact; and adds that too much praise cannot be accorded the standardized drillings you recently sent us.
ELK RAPIDS IRON Co., H, B. Lewis, Pres."
" It is no little comfort to have the standardized samples and to know that the work of our laboratory is correct and reliable.
EDGAR S. COOK, Pres. Warwick Iron Co., Pottstown, Pa."
" We are pleased with samples.    They will,  without doubt, greatly promote increasing accuracy in methods of iron analysis. J. BLODGET BRITTON Co., Warrentown, Va."
44 We are using the standardized drillings "and find them very useful in our laboratory. We think it very necessary that laboratories should be supplied with standardized drillings, especially those working on blast furnace products.          L. C. PHIPPS,
Second Vice-president Carnegie Steel Co., Pittsburg, Pa."
l< It has always been a task to get standards> especially standards that would check up with those from different concerns. It will simplify matters considerably if chemists will use standards from one party of the same value, as I have found that most of the errors in sulphur and phc yphorus come from different chemists' standards not checking. J. O. MATHERSON, Chemist,
Ashland Coal, Iron & Railway Co."
" I think the method of selling standardized iron samples from a central laboratory, such as the Standardizing Bureau of the American Foundry men's Association, is one to be commended. The confidence I have in my work after checking with these drillings is very gratifying.                       WALTER M. SAUNDERS, Analytical and Consulting Chemist, Providence, R. I."e Co., Wisconsin Malleable Iron Co,, VWstin-house Air 13rakc Co,, Votingstown Steel Co., Vale University. & Sons, Hecla Works, England; R. C. Hindiey, M. Hoskins, Harvard College, Havemeyer University, Henry Hiels Chemical Co., Isabella Furnace, Iron Gate Furnace, Iroquois Iron Co., Illinois Steel Co., Jefferson Iron Co., Kittan-ning Iron & Steel Co., C. A. Kelly Plow Co., Lebanon Furnace, Longdale Iron Co., Lackawanna Iron & Steel Co., Logan Iron........................   16,720     "                                     t-