The book of climates : acclimatization, climatic diseases, health resorts and mineral springs, sea sickness, sea voyages, and sea bathing / by D.H. Cullimore.
- Cullimore, D. H. (Daniel Henry)
- Date:
- 1891
Licence: Public Domain Mark
Credit: The book of climates : acclimatization, climatic diseases, health resorts and mineral springs, sea sickness, sea voyages, and sea bathing / by D.H. Cullimore. Source: Wellcome Collection.
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![The absence of cold winds depends mainly on the level character of the land, for wherever the surface is moun- tainous, with narrow valleys and gorges leading down to the coast stations, particularly when situated at the main alluvial outfall of the island, dysentery, hepatitis, and other affections due to alternations of temperature, are apt to be present; but when the islands are comparatively level and possess a soil capable of easy natural drainage those diseases are much less frequent. All marine climates are also cooler than other places at the same level, in consequence of the local wind, owing to the unequal heating of the land by day and night, while the greater prevalence of vapour helps also to veil the rays of the sun. Narrow peninsulas and promontories are remark- ably cool and equable. Having often noticed the breezy and exhilarating effect of a walk on the end of the pier at Madras in comparison with that along shore, I would recommend to the enter- prising the advisability of setting up hotels on the pier ends of such places as Madras or Colombo. An additional ad- vantage would be the freedom from human pollutions, so common yet so offensive to the olfactory senses in tropical towns. The air of the high seas is also free from germs and the sources of malaria, and is rich in bromine, iodine, and saline materials, while as regards health-giving ozone it is facile iwinceps. Water in relation to Tem])erature.—Water is heated more slowly, and gives off heat more slowly, than land. It also retains it longer. The loss by radiation is less than on land, and the air over it is moister and more equable than elsewhere. The specific heat of water is five times that of earth; water cooled at the surface sinks, allowing a lower and lighter stratum to come to the top, hence the adjacent air is not cooled at night as on land. According to Captain Thompson, the difference of the night and day tem- perature off' the coast of Scotland is only 6% while on land it](https://iiif.wellcomecollection.org/image/b20406538_0034.jp2/full/800%2C/0/default.jpg)
