The following is a list, with the names attached, of the machines now on exhibition at the Fair of the American Institute, and which have been illustrated in various volumes of the Scientific American. It is evidence and proof of our common assertion, " The Scientific American is the Repertory of American Inventions :—" 1. Mortising Machine, Fay's, Vol. 1, No. 14. 2. Mortising Machine, Otis', Vol. 2, page 41. 3. Mortising Machine, Chandler's, Vol. 3, No. 48. 4. Planing Machine, Woodworth, Vol. 2, page 407. 5. Drawing-board, Chamberlain's, Vol. 3, page 9. 6. Planing Machine, Daniel's, Vol. 4, page 52. 7. Meat Cutter, J. G. Perry, Vol. 4, page 383. 8. Anti-friction Press, Dick's, Vol. 5, page 220. 9. Brick Press, Wagner & Imley's, Vol. f>, page 401. 10. Straw Cutter, Bertholf s, Vol. 5, page 52. 11. Smut Machine, Harris', Vol. 5, page 385. 12. Educational Tables, Allen's, Vol. 5, page 161. 13. Patent Spring Chair, Warren's, Vol. 6, page 76. 14. Sash Balance, H. C. Brown, Vol. 6, page 332. 15. Self-Rocking Cradle, D. Walker, Vol. 6, page 349. 16. Artificial Leech, Thomas', Vol. 6, page 369. 17. Metal Railroad Car, T. Warren, Vol. 6, page 388. 18. Tuyere, Porter's, Vol. 6, page 408. 19. Clothes Dryer, Buckman, Vol. 6, page 362. 20. Lathe, White's, VoT. 7, page 86r 21. Submarine Explorer, Alexander's, Vol. 7, page 81. 22. Sewing Machine, Singer's, Vol. 7, page 49. 23. Drill, Bushnell's, Vol. 7, page 33. 24. Brake, Railroad, Stevens', Vol. 7, page 132. 25. Bridge, Aerial, Houghton's, Vol. 7, page 169. 26. Gold Separator, Buffum's, Vol. 7, page 56. 27. Car Ventilator, Paine's, Vol. 7, page 244. 28. Iron Fence, Wickersham's, Vol. 7, page 233. 29. Spinning Frame, Brundreth's, Vol. 7, page 361. 30. Blind Hinge, Barker's, Vol. 7, page 292. 31. Gas Generator, Gee's, Vol. 7, page 353. 32. Quartz Pulverizer, Cochran's, Vol. 7, page 364. 33. Car Seat, Buel's, Vol. 7, page 356. 34. Straw Cutter, Taylor, Thomas, & Co., Vol. 7, page 372. 35. Gold Separator, Gardner's, Vol. 7, page 393. 36. Gold Separator, Barclay's, Vol. 7, page 401. 37. Punching Machine, Sanford's, Vol. 8, page 20. The line of travel along the whole lake shore, from Erie to Cleveland, Ohio, will be completed and in full operation by the first of November, so that the obstruction hitherto experienced in the winter season from the closing of the lake will not be felt in the coming winter. The Canadian Government has given official notice that should it be required, a horse-police force may be established along the line of the Quebec and Richmond Railway, for the Lpreservation ol the public peace, and to prevent injury to the works