. Scientific American Volume 70 Number 08 (February 1894) . ng to purchase any article not advertised in our columns will be furnished with addresses of houses manufacturing or carrying the Written Information on matters of personal father than general interest cannot be expected without American Supplements referred to may be had at the office. Price 10 cents referred to promptly supplied on receipt of sent for examination should be distinctly marked or labeled. well packed throughout with clay puddle. Valve outsideof reservoir. 2
. Scientific American Volume 70 Number 08 (February 1894) . ng to purchase any article not advertised in our columns will be furnished with addresses of houses manufacturing or carrying the Written Information on matters of personal father than general interest cannot be expected without American Supplements referred to may be had at the office. Price 10 cents referred to promptly supplied on receipt of sent for examination should be distinctly marked or labeled. well packed throughout with clay puddle. Valve outsideof reservoir. 2. How much hay (weight) will a loft floorbear 16 feet across and 30 feet in length, resting on 2X8joists 1 foot 9 inches apart ? A. The floor will carry 4££tons of hay evenly distributed with safety. (5804) O. O. M. asks how to make a small furnace suitable for melting from 10 to 25 pounds of castiron; what to use to produce sufficient blast. A. Theaccompanying figures will give a very good idea of asmall cupola for melting iron. Fig. 1 being a perspec-. ^4^
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