Lectures. Seven were given this year: Mr. C. G. Hunt, “Geinstones.” Dr. E. B. Davies (Presidential address). ‘Trace Alements in Plant Nutrition.’ Mr. R. Shannon,” planetary Flight” Mr. R.E.C. Taylor, “Refrigeration” Mr. A. C. A. Caldwell, “220,000-Volt Transmission Lines.” Mr. C. J. W. Parsons. “Roads and Highways.” Mr. J. Healy, “Geothermal Power Investigations.”

Other activities were an Exhibition of Bird Photographs in July and a Scientific Display Evening in October. Exhibits at this latter evening included the Hamilton City Council railway model a chromatography display, a chromium analysis display and a demonstration of remote control and servo-mechanism (Rukuhia); an exhibit on spectrographic analysis and a set of lantern slides on plant nutrition (Ruakuhia); a private automatic exchange and a Creed teleprinter (P. & T.); a display of road and concrete testing equipment (Ministry of Works); an exhibition of relays and switchgear (State Hydro Dept.); and a demonstration of methods of typing blood and operating a Blood Bank (Waikato Hospital). In addition, a film on Dental Care “was shown at intervals during the evening (South Auckland Dental Association).

Field Trips During the year, the Executive investigated the possibility of organising field trips—e.g., to an open-cast coal-mine. Though no definite arrangements were made, we feel that such trips could be of great interest, and we wish to record the suggestion for future years.