A certain quantity of the water which is absorbed by the ground after rain must penetrate to a great depth, must descend, in fact, until at 1½ miles it is boiled and driven up again to find some outlet as a spring. In rising up, however, it is for the most part cooled; but having charged itself with various saline and metallic bodies, under the most favourable circumstances of high temperature and pressure, it issues as a hot mineral spring or spa. On getting into the air, it generally abandons a great part of what it had dissolved, and forms in many cases enormous depositions of solid rock. A company in Paris have formed the idea of using the water thus heated by the powers below, for the purposes of public baths. The neighbourhood of Paris is peculiarly fitted for what are termed Artesian wells, in which the water often rises considerably above the surface of the ground. Under the auspices of this company, a well has been sunk already to the depth of 1600 feet, and water obtained at 77 degrees; but to obtain natural hot water at a temperature of 100 degrees, which would be required for bathing purposes, an additional depth of probably as much more will be required. It is said the projectors are not now sanguine of its pecuniary success. * * * * * THE SECRET OF SUCCESS IN LIFE.--In no department of life do men rise to eminence who have not undergone a long and diligent preparation; for whatever be the difference in the mental power of individuals, it is the cultivation of the mind alone that leads to distinction. John Hunter was as remarkable for his industry as for his talents, of which his museum alone forms a most extraordinary proof; and if we look around and contemplate the history of those men whose talents and acquirements we must esteem, we find that their superiority of knowledge has been the result of great labour and diligence. It is an ill-founded notion to say that merit in the long-run is neglected. It is sometimes joined to circumstances that may have a little influence in counteracting it, as an unfortunate manner and temper; but generally it meets with its due reward. The world are not fools--every person of merit has the best chance of success; and who would be ambitious of public approbation, if it had not the power of discriminating?--_Physic and Physicians._ * * * * * Printed and Published every Saturday by GUNN and CAMERON, at the Office of the General Advertiser, No. 6, Church Lane, College Green, Dublin; and sold by all Booksellers. End of the Project Gutenberg EBook of The Irish Penny Journal, Vol. 1, No. 16, October 17, 1840, by Various