To the crossheads there is attached a a thin superficial layer of plumbic sulphide (PbS). The dos, and Santa Cruz have also been supplied with these ani- compensating water tank, O, the area of which is made pro- lead plates, very finely grooved, are heated in sulphur, in what form I do not know,… … ELEVATOR FOR RAILWAY of rat-eaten canes to one-fourth or one-fifth of what it was phide of lead, through ‘which the current goes, with the lift to ascend to its full height, the rams, K, N, being idle previously, representing an annual saving to the island of result that on the one plate the…
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