The London Practical Mechanics' Journal publishes in the April number a summary of Taylor's Bill for amending the U. S. Patent Law, and precedes it with the statement " we are informed on very good authority that the present bill is likely to become a law." We rather suspect that the good authority of our esteemed cotemporary has confounded the bill spoken of with the one subsequently introduced in the Senate by the late Senator Evans, and published in No. 28 of the present volume of the SCIENTIFIC AMERICAN. The two bills are entirely different in all essential particulars, and while the first has been virtually ' abandoned by its author, the excellent bill of ( Senator Evans is still pending, and we trust ! will become a law.