Allen, Charles Ricketson, 1862- [from old catalog] · New York, H. Holt and company · leaf 244
hirds full with mercury. The only expense connected with this instrument is that of the CONSTRUCTION OF APPARATUS. 231 binding-posts. These may be dispensed with by the arrangementshown in Fig. 114. Attach a strip of wood \ x \ x 2 in. to thetop of the block by a single screw. Pass under this strip… … Rack with Wires. (See Fig. 28).—The base-board A is 5 or 6in. wide, and of such length that the centres of the uprights area meter apart. The ends of the meter-stick rest in notches cutin the uprights. Small tacks are driven into the uprights, atintervals along vertical lines dropped from the ends…
Physics
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