The Dashtistan forms, however, a very small percentage of the area of Persia, as its level plain is abruptly succeeded by the mountains, which rise, terrace over terrace, to a height of 5,000 to 6,000 feet, and once the plateau of Fars is reached the traveller finds himself in surroundings which, although suffering a good deal from the scarcity of water, have much to recommend them in the purity and dryness of the air, and which would no doubt be thoroughly healthy under a decently sanitary _régime_. At present the country is out of the question for purposes of health, as one requires to be pretty “hard bitten” to get about it at all; but assuming the introduction of the amenities of civilisation there can be little doubt as to its suitability for the treatment of pulmonary disorders; and even as matters stand, I cannot recall meeting with cases of tuberculous disease amongst the natives of the country. Owing to the very different levels, it is difficult to give any general idea of the climate, but the climate of two of the principal towns given below must suffice as a sufficient example. =========++====================================++ Month || TEHERAN. || || Lat. 85° 41′ N.; Long. 57° 25′ E. || || E.F., 3,700; E.M., 1,130. || ++===========+===========+============++ || Mean | Mean | Rainfall || || Maximum | Minimum | || ||Temperature|Temperature| || ++----+------+----+------+----+-------++ || F. | ~C.~ | F. | ~C.~ |Ins.| ~Mm.~ || ---------++----+------+----+------+----+-------++ January ||42·3| ~5·7~|26·2|~-3·2~|1·17| ~29·6~|| February ||52·1|~11·2~|32·9|~-0·5~|0·85| ~21·6~|| March ||57·2|~14·0~|38·4| ~3·5~|2·44| ~62·1~|| April ||71·4|~21·8~|49·9| ~9·9~|0·87| ~21·7~|| May ||82·9|~28·2~|59·4|~15·2~|0·41| ~10·3~|| June ||94·4|~34·6~|67·1|~19·5~|0·04| ~1·2~|| July ||98·4|~36·8~|72·1|~22·3~|0·35| ~8·9~|| August ||96·7|~35·9~|70·7|~21·5~|0·04| ~1·2~|| September||90·7|~32·6~|64·9|~18·2~|0·11| ~2·6~|| October ||77·5|~25·3~|54·0|~12·2~|0·14| ~3·7~|| November ||61·4|~16·3~|42·2| ~5·7~|1·17| ~29·6~|| December ||57·3|~14·1~|33·9| ~0·5~|1·33| ~34·0~|| ---------++----+------+----+------+----+-------++ Year ||73·0|~22·8~|57·0|~10·6~|8·92|~227·0~|| =========++====+======+====+======+====+=======++