. Bulletin of the British Museum (Natural History). JOHN FREDERICK MARSHALL AND THE BRITISH MOSQUITOES 25. ira>,''i J r: , ;â>-' â *: Fig. 20 Dr^iining a salt-marsh area by opening a sluice valve during low tide selection of prepared slides, sets of lantern slides and living mosquitoes were all obtainable at a cost from the Institute as were prepared items and demonstrations suitable for Health and other exhibitions. (2) The provision of a Demonstration Museum (Fig. 23) showing all aspects of mosquitoes including maps, diagrams, preserved and living specimens, lantern slides and apparatu
. Bulletin of the British Museum (Natural History). JOHN FREDERICK MARSHALL AND THE BRITISH MOSQUITOES 25. ira>,''i J r: , ;â>-' â *: Fig. 20 Dr^iining a salt-marsh area by opening a sluice valve during low tide selection of prepared slides, sets of lantern slides and living mosquitoes were all obtainable at a cost from the Institute as were prepared items and demonstrations suitable for Health and other exhibitions. (2) The provision of a Demonstration Museum (Fig. 23) showing all aspects of mosquitoes including maps, diagrams, preserved and living specimens, lantern slides and apparatus used in control programmes. The Museum was open to the public from ?> to 4 pm on week days and at other times by appointment. The popularity of the Museum may be judged by the fact that by November 1931 it had been visited by 9164 people. (3) The provision of courses. Two-day instructional courses in laboratory and field work were run on the first Tuesday of each month. These courses were designed for 'sanitary officers, persons going abroad, and others who had no time (or no desire) to acquire more than an elementary knowledge of the principles and practice of mosquito control work'. An additional day's instruction was also available for those wishing to obtain more detailed information on any of the topics covered in the two-day course. The fee for the two-day course was two guineas and the three-day course, three guineas. (4) The establishment of a comprehensive library. This contained a large selection of books, pamphlets and other material relating to the control of Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original British Museum (Natural History). London : BM(NH)
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