Notes on the climate of Algiers / by T.H.F. Tothill.

  • Tothill, T. H. F. (Thomas Henry Frederick)
Date:
[1874]
Catalogue details

Licence: Public Domain Mark

Credit: Notes on the climate of Algiers / by T.H.F. Tothill. Source: Wellcome Collection.

    6/16 (page 6)
    noon from the sea, springs up, the temperature ceases to rise. In winter, this breeze only exists on rare occasions, and the maximum is generally about 1 P*m. Sadden fail Towards 3 or 4 pan., the temperature falls rather perature. suddenly, especially when the shy is clear, and towards 4 or 5 a further fall takes place, when the sun des¬ cends still more rapidly towards the horizon. its cause. This takes place in all similar climates, the cause being, that the inclination of the sun’s rays, which inclination is almost stationary from 10 aan. to 2 p.m., increases rapidly from 3 p.m. to the time of the actual . setting of the sun. Altitude of It is an interesting fact that at Algiers, the latitude Sun. , of which is 36° 42, the sun attains on the 21st June an altitude of 76° 42', and on the 21st December 29° 42'; at London it only attains 62° 2' and 15° 2' respectively; at Edinburgh 57° 33' and 10° 33'; and at Paris 64* 40' and 17° 50'. The altitude of the sun in winter at mid-day is therefore nearly double at Algiers that of London, and triple that of Edinburgh. Decreaseof It is a thing well known by all, that temperature ture in pro- falls in proportion as one rises above the sea level; portion to , elevation. but it also varies with the latitude, and especially with the topographical configuration. Thus amongst high mountains this decrease of temperature is greater, in proportion to height, than in places surrounded by plains or small hills.