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Every Negative Was Numbered: Every negative was numbered, the negative number was written on the back of each corresponding print and with the prints when they were delivered was a blank for use in reordering additional prints by number at the price of $2 each. The higher price for the reorder prints, incidentally, was not resented, but rather helped to impress the buyer with the value he was given in the original order.camera operator, keep a written record in sequence of every shot. A girl can be posted to take names and addresses just before the pictures are taken, keep them numbered in order, and make sure that none of the children in the line trade places. Every roll of film, then, should be numbered as it is taken from the Camera and that number should be retained as a permanent file number. Negatives from each roll then should be numbered before the film is cut up for printing, and each roll should be kept, from then on, in a separate envelope. This method, if adhered to scrupulously, will prevent mixup.
The products of transmutation reactions include radioactive isotopes of almost all elements, as well as certain elements themselves. Among the latter are the elements (numbered 43, 61, 85, and 87) which are missing from the periodic system (see PERIODIC LAW) and the so-called transuranium elements (q.v.) numbered 93 to 103, of which plutonium (number 94) has attained particular importance in connection with nuclear weapons. |
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