The Riviera : sketches of the health resorts of the north Mediterranean coast of France and Italy from Hyères to Spezia : with chapters on the general meteorology of the district, its medical aspect and value, etc. / by Edward I. Sparks.
- Sparks, Edward I. (Edward Isaac), 1843-1880
- Date:
- 1879
Licence: Public Domain Mark
Credit: The Riviera : sketches of the health resorts of the north Mediterranean coast of France and Italy from Hyères to Spezia : with chapters on the general meteorology of the district, its medical aspect and value, etc. / by Edward I. Sparks. Source: Wellcome Collection.
Provider: This material has been provided by the Francis A. Countway Library of Medicine, through the Medical Heritage Library. The original may be consulted at the Francis A. Countway Library of Medicine, Harvard Medical School.
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![Mentone, and the table gives (a) the minimum read- ing between 4 p.m. and 9 p.m.; [b] the actual tem- perature at 9 p.m.; and (c) the minimum tempera- ture of the subsequent night. We may in each case assume an initial temperature at 4 p.m. several degrees higher than any of the subsequent readings, though I regret that I omitted to note the actual temperatures. Date. Dec. 1,1878. Dec. 2. Nov. 7. Nov. 19. (a) Minimum between4 and9p.ni. (b) Temperature at 9 p.m. . (c) Minimum of night 44 47 43 47 48-6 47-8 46 48 45 51-5 54 52-4 In concluding this part of the subject, I may m ention that Prof. Tyndall, in his admirable lectures on Heat as a mode of motion (edition 1865) at para- graph 495, explains the serein or excessively fine rain which sometimes falls in a clear sky during the fine season a few moments after sunset/' not by the chilling of the air by radiation, but by radiation fi^om the body (aqueous vapour) itself, whose condensation produces the serein. The explanation given above of the production of dew nevertheless still holds good. Those interested in the subject should read the last few sections of chapter x, and the earlier sections of chapter xiii, of Prof. TyndalFs work just quoted. One purely meteorological point may just be alluded to here, namely, the comparative uselessness of the barometer in predicting weather on the Riviera.](https://iiif.wellcomecollection.org/image/b21078658_0041.jp2/full/800%2C/0/default.jpg)
