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drawings, all the subjects comprising one plate should be grouped on the same sheet of paper or cardboard, as any joining-up shows in the print. Text figures should be drawn for reduction to a width not exceeding 4 1/3 in. If there are a number of small text figures they should be drawn all for the same reduction, so that they may be arranged in groups. 12. Maps.—A small outline map of New Zealand is obtainable at a low price from the Lands and Survey Department, Wellington, upon which details of distribution, &c., can be filled in according to the instructions given above for line drawings. 13. Citation.—References may be placed in a list at the end of an article or arranged as footnotes. The former method is preferable in long papers. In the list references are best arranged alphabetically, reference in the text being made by writing after the author's name, as it occurs, the year of publication of the work, adding, if necessary, a page number, and enclosing these in parentheses, thus. “Benham (1915, p 176).” Example of forms of citation for alphabetical list:— Benham, W. B., 1915. Oligochaeta from the Kermadec Islands, Trans. N Z. Inst., vol. 47, pp 174–85. Park, J., 1910. The Geology of New Zealand, Christchurch, Whitcombe and Tombs. When references are not in alphabetical order the initials of the author should precede the surname, and the year of publication should be placed at the end. 14. In accordance with a resolution of the Board of Governors, authors are warned that previous publication of a paper may militate against its acceptance for the Transactions. 15. In ordinary cases twenty-five copies of each paper are supplied gratis to the author, and in cases approved of by the Publication Committee fifty copies may be supplied without charge. Additional copies may be obtained at cost price.