The first ordinance for the establishment of a board of health in this city, (so far as known,) was passed by the general council in June, of 1841.[4] The board consisted of nine members--three aldermen, three physicians, and three private citizens. It was invested with ample powers to adopt and enforce such sanitary regulations as were thought conducive to the health of the city. This board performed all its functions well during the first year of its existence. The second year there was a falling off; but a dissolution did not take place till 1843. In 1844, the board of health having ceased to officiate, the general council invited the medico-chirurgical society to take charge of this duty. This proposition was accepted, and a committee of nine members appointed, with full power to act as a board of health. If this body do their duty, as there is no reason to doubt they will, much benefit may be expected to result. Their advice to citizens, and strangers who were unaclimated, on the approach of the warm weather of 1844, was certainly marked with a great degree of good sense and seasonable caution. They will now be looked up to as the great conservators of the health of the city; and, it is to be hoped that public expectation will not be disappointed. The following abstract of a Meteorological Journal for 1844 was obligingly furnished by D. T. Lillie, Esq., of New Orleans, a gentleman, whose scientific acquirements are a sure guaranty for its accuracy. The thermometer (a self registering one) used for these observations, is not attached to the barometer, and is placed in a fair exposure. Hours of observation, 8 A. M., 2 P. M., and 8 P. M. The barometer is located at an elevation of 28 feet above the level of the ocean; and is suspended clear of the wall of the building. The rain gauge is graduated to the thousandth part of an inch, and the receiver of it is elevated 40 feet from the ground. METEOROLOGICAL TABLE.