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(&) Topographical Maps 1. i : 25,000. —The drawings for six sheets of this series were completed during the year. 2. 1 :63,360. —The drawings for two sheets of this series were completed during the year. 3. 1 :250,000. —1t has been considered desirable to replace the present 4 miles to 1 in. map of New Zealand with a new topographic series at scale 1 : 250,000. There are thirty-one sheets in the series and three sheets are in various stages of preparation. (c) Other Work 1. Maori Social and Advancement Act, 1945. —A number of descriptions and plans were prepared of tribal districts, but further information is required before the work can be completed. 2. Hydrological Maps for Soil Conservation Council. —The basic map for this series has been completed and as soon as the hydrological data is made available the necessary overlay drawings will be prepared. 3. Miscellaneous Maps.—A large number of special maps and drawings have been prepared during the year for Service Departments, the Agriculture Department, and the Tourist and Health Resorts Department. (d) Map Publications The table below is a summary of maps published during the year, together with cost of map and chart printing:—

The mosaic maps are produced under contract by N.Z. Aerial Mapping, Ltd., Hastings. The 1 :15,840 (20 chains to an inch) is employed for civil requirements, while the 1 : 25,000 series is essentially a scale suitable for Army purposes.

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Class of Map. Number of Sheets Published. Printing-costs. Topographic— 1:25,000.. 1:63,360.. Cadastral — Survey districts Counties Towns Aeronautical — Approach and landing charts Plotting charts .. .. .. General .. .. .. .. Miscellaneous and index maps 2 3 47 7 5 ■5} 15 6 £ 291 463 450 306 316 343 600 273 Totals 100 3,042 Mosaic maps —■ 1 : 15,840 (20 chains to an inch) 1 : 25,000 (32 chains (approximately) to an inch) " Fotomaps " (20 chains to an inch) 24 24 66 Totals .. .. 114