THREE:Considered upon grounds of commercial expediency as a question of cost alone, it is generally cheaper to move material by hand when it can be easily lifted or moved by workmen, when the movement is mainly in a horizontal direction, and when the labour can be constantly employed; or, to assume a general rule which in practice amounts to much the same thing, vertical lifting should be done by motive power, and horizontal movement for short distances performed by hand. There is nothing more unnatural than for men to carry loads up stairs or ladders; the effort expended in such cases is one-half or more devoted to raising the weight of the body, which is not utilised in the descent, and it is always better to employ winding or other mechanism for raising weights, even when it is to be operated by manual labour. Speaking of this matter of carrying loads upward, I am reminded of the fact that builders in England and America, especially in the latter country, often have material carried up ladders, while in some of the older European countries, where there is but little pretension to scientific manipulation, bricks are usually tossed from one man to another standing on ladders at a distance of ten to fifteen feet apart.Just for a moment Bruce almost lost his self-possession. The beauty with the fair hair was regarding him curiously. He felt half annoyed that he had been so near betraying himself. The medical man was uppermost now. Evidently the patient was in a state of almost collapse from alcoholic poisoning. As is usual in such instances, sleep had forsaken the wretched man, and he had had recourse to drugs. He had taken an overdose and medical aid had been summoned just in the nick of time.
Volunteer, Porshee Foundation
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