Any inflammation of the mucous membrane of the throat or nose is favorable to the production of Catarrh. Ordinary colds, if neglected or aggravated by additional exposure, are very apt to become chronic and run into Catarrh, and are the cause in nearly two-thirds of all the cases that present themselves. Scarlet fever, measles, diphtheria, and all the diseases affecting the throat, the inhalation of dust, impure atmosphere or aerid vapors, are among its most frequent inciting causes. Catarrh attacks in preference those possessing a feeble or scrofulous constitution and a lymphatic temperament; individuals of soft fibres, respiring an impure or confined atmosphere, or whose systems are debilitated by insufficient or unsubstantial nourishment; persons enervated by severe memtal labor, physical excesses or exhaustive diseases; those who lead a life of indolence, or dwell, either from choice or necessity, in damp, ill-ventilated places, deprived of pure air and the necessary sunshine. Persons who are exposed to the vicissitudes of the weather, or insufficiently protected against cold, scrofulous children, chlorotic females and these recently confined. In fact, whatever debilitates the system or vitiates the constitution, favors the development of catarrh. Its great prevalence in this country is owing to the sudden and frequent changes of the weather and temperature, to the extensive travel by rail where persons are confined in dusty, badly-ventilated, over-crowded and overheated cars. With the mail population it can often be traced to the extensive and inordinate use of tobacco, which enervates the system and produces local inflammation of the mucous membrane of the throat. In the females, to indolent and sedentary habits and their confinement to darkened rooms and parlors, whence the beneficent sunshine is sedulously excluded for the benefit of furniture, carpets, and complexion. This style of living renders the constitution weak and puny, highly sensitive to cold or to changes of the weather, and unable to resist any shock to the system. With children it often arises from the foolish and imprudent exposure of their arms and legs, which are left uncovered from a fancied idea that it improves their appearance. This practice cannot be too severely reprehended, for it causes an unequal circulation and consequent congestions. As the mucous membrane of the nasal passages is the most sensitive surface exposed, repeated attacks of cold are the result of this absurd custom, and catarrh not unfrequently follows.

Catarrh has been considered an incurable disease, and on the strength of that supposition, has been neglected by both the profession and the public.

The author has for years past made this complaint his special study; was the first to publish a minute description of its nature, symptoms and effects, and has, by doing so, directed the attention of both the profession and the public to the vast importance of the subject.

By the established success of the treatment as instituted and perfected by him, he has proved beyond dispute the curability of catarrh, if properly treated. All doubts of the corrected of this statement will be dispelled by the perusal of the annexed testimonials from parties occupying well-known positions in society.

CLARENDON HOTEL, NEW-YORK.

I take pleasure in recommending Dr. Lighthill to those affected with catarrh or diseases of the throat, as I have myself suffered for some years past from those difficulties, and been relieved by the Doctor's efficient and skillful treatment.

J.S. BEECHER.

No. 63 BLEECKER-ST., NEW-YORK.

I have been suffering from catarrh in a severe and complicated form for many years, which was very much aggravated by exposure in the field, and threatened the most serious consequences.

I placed myself under the medical care of Dr. Lighthill, who was highly recommended to me, and to whom I am indebted for a radical cure.