An Essay on the Subject Proposed by the Royal Irish Academy, viz. "An Essay on the Nature and Influence of the Ancient Irish Institutes, Commonly Called Brehon Laws, and on the Number and Authenticity of the Documents Whence Information concerning Them May Be Derived; Accompanied by Specimens of Translations from Some of Their Most Interesting Parts." With an Appendix, Containing a Catalogue of the Principal Ancient Irish Laws, to Be Found in the MSS. Library of Trinity College, and Other Libraries. A Prize Essay