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The Iron Age 1885-01-08: Vol 35 Iss 2

1885 Reed Business Information US

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1885. < = | a INDEX TO READING MATTER PAGE A Published every Vol. XX XV: No. 2. SCIENTIFIC AND TECHNICAL. The Structure of Coal, In a paper read by Mr. E. Wethered, at the Montreal meeting of the British Associa- tion, on the structure of English and Ameri- can carboniferous coals, the author said he had examined several seams of coal both in England and America, and pointed out that they were not always made up out of one continuous bed of coal, but often comprised several distinct well-known Welsh ‘‘4-feet’”’ seam there were four distinct strata of coals, separated by clay beds only a few inches in thickness. In the case of the ‘‘ splint coal” from the White Hill Colliery, near Edinburgh, the seam presented three clearly-defined beds of coal, but these were not separated by partings Thursday beds. In the case of the| Review of the Hardware, Iron Morning by Davin Writutams, No. 83 Reade Street, New York. French and German Experiments Against Chilled Cast-Iron Armor.* inch in diameter, and from the lower and outside surface the metal is beveled away from the hole % inch or more. We have thus practically an orifice in a thin plate. Eighteen inches above the plane of the ori BY JULIU…

Citation

The Iron Age 1885-01-08: Vol 35 Iss 2. Reed Business Information US. 1885.