MORE CROP-DRYING.
The question of crop-drying by artificial means, discussed in this place some weeks ago, begins to excite interest—my postbag tells me—in more than one European country. The subject is very fully discussed in a pamphlet published by the Oxford University Press under the Ministry of Agriculture ; but it contains no full account of the latest attempts, and tends to belittle the non-mobile apparatus. An essential advance in the system was made in 1919, when Mr. Charles °Tinker of Aberdeen first patented his machine. It may be described as a parent invention, from which a number. of adaptations have sprung. The chief difference in the appa- ratus that I saw at work in Cheshire is that Colonel Lyon used hot water in his pipes and Mr. Tinker steam.
W. BEACH -TgOMAS.,
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