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A summary of map and chart production for the year 1949-50 is as follows :

Cadastral Maps The cadastral map cover of New Zealand is very nearly complete and has been for some years but many maps are long overdue for revision. It is intended that these maps will be brought up to date as soon as possible by the redrawing and revision of obsolete maps. Topographic Maps Both 1 : 25,000 and 1 : 63,360 (1 in. to 1 mile) mapping has progressed during the year and sixteen sheets are in the final drawing stage. It has recently become apparent that the 1 : 63,360 maps should be extended to give complete cover of the country as soon as possible. While it will not be possible for many years to produce maps of the whole country to the same standard as existing maps, it is proposed to proceed with interim mapping. These interim maps will not in general show topographical relief but will show all roads and other cultural development and the drainage pattern. They will satisfy most of the user demands and fill a long-felt need. Aeronautical Charts A heavy commitment of the Department's cartographic service is the production of aeronautical charts for civil aviation. Work has progressed on the production of approach and landing charts for aerodromes and most of the main airports have been charted. Charts produced during the year are as follows : (1) Approach and landing charts .. .. .. 41 (2) Radio facility charts .. .. .. 22 (3) Services charts .. .. .. .. 27 (4) Plotting charts .. .. .. .. 3 93 In addition, work has progressed on the production of the new 1 : 500,000 aeronautical charts 1.C.A.0. and it is hoped that these charts will be published by the end of 1950. Mosiac Maps In order to give map cover in areas where topographic maps are not available the production of mosaic maps was put in hand in 1948. These maps are of inestimable assistance in developmental works of all' kinds and during the year eighty-nine maps were published, mostly in the Rotorua-Taupo area. The maps are being produced by New Zealand Aerial Mapping, Ltd., under contract to this Department. It is anticipated that production will increase to 120 sheets per year and that the present programme of approximately 1,160 sheets will be completed in about eight years.

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In Hand, Published 31st March, 1950. 1949-50. (1948-49.) General and miscellaneous maps 26 31 (21) Cadastral maps 32 51 (59) Topographic maps 23 5 (5) Aeronautical charts 29 97 (15) Mosaic maps 263 89 • (24) 373 273 (124)