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Published online by Cambridge University Press: 02 December 2020
1 Cards of this size will be furnished by the Society, but as they may be obtained at any printing office for about fifty cents a thousand, readers will confer a great favor by providing their own supplies. Please see that the cards are cut with care so that they shall be neither larger nor smaller than that of the library card, that is seven and one-half by twelve and one-half centimetres, or three by five inches.