To be in a fit condition for enjoying the advantages of the bath, the individual must have the stomach empty, be free from fatigue, perspiration, as well as mental emotion of every sort. The bath should not be continued above three quarters of an hour, and in the Tigre one should not remain above twenty or thirty minutes. Should the nature of the disease so require, the invalids may bathe twice a day. A purgative of cream of tartar or Epsom salts should be taken as a preparative for bathing in these baths. Strict attention to diet, daily exercise to favour perspiration, and great care to avoid exposure to damp or chills during the time of taking exercise, or coming from the bath, are requisite precautions. The effects of these waters are slow of manifesting themselves, and, for this reason, their continued use in many cases is necessary; to their perseverance and constancy in this respect many individuals, now in the enjoyment of perfect health, owe their recovery. STEAM NAVIGATION. We have in Vol. I. p. 173, alluded to the prospects of a Steam Navigation along the shores of the Pacific Ocean; and we are now happily able to subjoin a few statements on this subject, for the perusal of such of our readers as may not have seen the report of the British merchants and residents at Lima and Callao, upon the subject of opening through Panama a direct communication between Great Britain and the western coast of South America.[66] The first meeting on this interesting subject was held in Lima on the 12th of August 1836; and on the 7th of September, at a public meeting, the report of the British Merchant Committee was unanimously approved, and ordered to be printed and circulated in English and Spanish. From a pamphlet, accompanied with documents which detail the general plan of the intended operations of the Pacific Steam Navigation Company, printed by J. M. Masias, in Lima, we extract the following authentic information regarding the “Statistics of Trade, and the favourable influence of Steam Navigation.” “It is only since the dynasty of Spain ceased to exist in South America, that the shores of the Pacific have been thrown open to foreign commerce; and, when it is considered how much these countries have suffered from continued revolutionary convulsions, the rapid advance of commerce and trade is somewhat extraordinary. The following statement of imports is from the best data which could be obtained.