162-6 i AN ADDRESS DELIVERED IX THE CAPITOL, IN WASHINGTON CITY, February 16th, 1828, AT AN EXHIBITION OF THREE OF THE PUPILp PENNSYLVANIA INSTITUTION FOR THE EDU- CATION OF THE DEAF AND DUIKB. ____________( s~--?s BY LEWIS WELD, \ — / V n PRINCIPAL OF THE INSTITUTION. \*fi / PUBLISHED BY REQUEST, WASHINGTON : WAY & G1J1EON, PRINTERS. 1828. 4 • the hands of the intelligent they are capable of application to all the subjects of thought and of communication, between man and man. It was this discovery and the success attending the course of instruction which followed it, that gave rise to the Royal Insti- tution of France, and in fact to those of most of the countries of Europe ; several of which depend for support upon the bounty of their respective governments. Others are most liberally sus- tained by private charity: so that the best opportunities have been enjoyed for perfecting this most difficult system of educa^ tion, and bringing it to the test of experience. About ten years since it was introduced into the United States, in its most ap- proved form and by men singularly qualified for the undertaking. Its success here has been witnessed by thousands of our fellow citizens, and its good effects have been experienced by hun- dreds of their children, who must otherwise have remained but blanks in society. Happily for those engaged in the cause of education, they meet nothing in the genius of our country or her institutions, unfriendly to their object. On the contrary, the diffusion of knowledge among all classes of society, is one of her distin- guishing characteristics, and hence, little more is requisite than to make known the necessities of the ignorant, and the claims of the unfortunate, to ensure relief. But that we may act under- standing^ in the cause of the Deaf and Dumb, it becomes ne- cessary to know the extent of the evil we are called upon to remedy, as well as those general principles in the management of institutions for them, which experience has proved the most efficacious. In the year 1820 the number of deaf-mutes was ascertained in forty-one counties, of the state of Pennsylvania. The result was, that among the whole white population of twenty-five of these counties, the proportion of the Deaf and Dumb, was pre- cisely one to every two thousand, and in regard to the whole population of the state, this proportion holds very nearly. Similar enumerations have been made in other states, and in foreign countries, and the results tend to establish the same posi- tion. 5 Assuming it then as proved, that this is the true proportion in