To all the light-keepers forwarding schedules our best thanks are due; to those sending legs and wings, and specimens in the flesh, we are under still further obligations. The interest evinced when three, four, and five schedules are filled with careful notes, shows the desire to further knowledge for its own sake, and speaks well for the intelligence of such observers. The Commissioners of Irish Lights, and their secretary, Mr Owen Armstrong, continue to give us their very necessary assistance; and Captain Boxer, E.N., in his frequent visits to the lighthouses, is ever ready to further the objects of this inquiry. Richard M. Barrington. Alexander G. More. List of Light-Stations. Miles Sched. from Names of Filled. Au. Sp. Shore. Observers. 1. Fastnet, Co. Cork, 2 x x 8 George Dunleavy. 2. Galley Head, Cork, o o o -- _No reply._ 3. Old Head, Kinsale, Cork, o o o -- _No reply._ 4. Mine Head, Waterford, 4 x x -- Edward M'Carron. 5. Dungarvan, Waterford, 1 o x -- Wm. Higginbotham. 5.*Coningbeg Lt.-ship, Wexford, 2 x x 10 Patrick Cullen and Wm. Clydesdale. 6. Barrels Rock Lt.-ship, do., 3 x x 4 Charles H. M'Cabe. 7. Tuskar Rock, do., 4 x x 7 Rd. Hamilton, Peter Page, & E. M'Kenna. 8. Arklow Sth. Lt.-ship, Wicklow, 2 x x 7 Patrick Clancy and Alfred B. Wall. 8.*Arklow North Lt.-ship, do. 3 x x 8 William Daly. 10. Kish Bank Lt.-ship, Dublin, 1 x o 7 Michael Cunniam. 11. Howth Baily, Dublin, o o o -- No reply. 12. Rockabill, Dublin, 5 x x 5 Jos. Hammond and Henry Kelly. 13. Copeland (Mew) Island, Down, 1 x o 3 John O'Donnell. 14. Maidens, Antrim, 2 x x 5 Michael Barry. 15. Rathlin, Antrim, 1 x o 6 John A. Murray. 16. Innishtrahull, Donegal, 4 x x 6 M. S. Kennedy. 17. Dunree Head, Donegal, 1 x x -- Jervis Brownell. 19. Tory Island, Donegal, 1 x o 9 Henry Stocker. 20. Arranmore, Donegal, 2 x x 5 Henry Williams. 21. Rathlin O'Birne, Donegal, 1 o x 2 J. C. Macginley. 22.