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... 1r.AMSB and SUMMER'S PATENT BOILERS. Bn JU -The ARTIZAIN, for DmECEMSER, price is., contains Plates al of these Sheet water .pace, Boilers as applied to thle Pacia, and aI for vessels of ?? cf the Expecrimients on thle Strength of Irolb thle Railway Commiission-OnI the Ventilation of Coal Mines, by W. Blrunton , C.E-French S~'Stelll of Expansion Canis- J Indicator Diagrams from Double ...