THREE:"End of the first act," Lawrence said with pardonable triumph. "You are just going into your rooms when a motor comes up. It looks like a coincidence, but the driver has been lurking about waiting for you. Do you suppose it was chance that you were picked out of all the doctors in London?"A quiet sigh escaped from the listener. She smiled again.
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THREE:CHAPTER XVIII. MACHINE COMBINATION.
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."Then I shall shoot."
THREE:WITH THE FLEMINGS