THE recent article1 by Wing-Commdr. Hamshaw Thomas is very timely. I have recently been attached to H.Q., S.E.A.C, so I have had considerable opportunity of seeing the part played by air photography in that region. When the time comes for the full story to be told, it will be found that many of the applications are likely to be those described in the recent article. My present purpose, however, is to put on record a plea for the continuation of R.A.F. air survey in the tropics as well as in England. The need in the Far East is even greater than in Great Britain, because many of the tracts of country are almost inaccessible. One need scarcely say that the governments concerned, for example, India, Ceylon, Malay and Burma, are fully aware of the great value of air survey, but too often decisions are made in Great Britain by people who are not familiar with the needs elsewhere. Here one may refer to the aerial surveys carried out for the forest service in Burma, for example, Irrawaddy and Lower Tenassarim, between the two Wars, though for present-day purposes these were on a small scale. There has also been great improvement in technique since these surveys were carried out, and much of the work must require repetition.
Thomas, H. H., Nature, 156, 409 (1945).