Award of the Boyle Medal to Sir Hoivard Gruhh. 291 



11. With Chas. E. Burton. — On a New Form of Ghost j\Iicrometer for Use 

 with Astronomical Telescopes. Scient. Proc. Royal Dublin Society. 1880. 



12. Note on the Effect of Flexure on the Performance of Telescopic Objectives. 

 Scient. Proc. Eoyal Dublin Society. 1883. 



13. On a New Form of Equatorial Telescope. Scient. Trans. Royal Dublin 

 Society. 1884. 



14. Notes on some Points in the Construction of Turret Clocks. Scient. Proc. 

 Royal Dublin Society. 1885. 



15. Note on some Improvements in Equatorial Telescope Mountings. Scient. 

 Proc. Royal Dublin Society. 1886. 



16. Note on a Graphical Method of Solving certain Optical Problems. Scient. 

 Proc. Eoyal Dublin Society. 1887. 



17. The Construction of Telescopic Object-Glasses for the International 

 Photographic Survey of the Heavens. Scient. Trans. Royal Dublin Society. 1890, 



18. On a Heliostat for the Smithsonian Institution, Washington. Scient. Proc. 

 Eoyal Dublin Society. 1890. 



19. Revolving Machinery for the Domes of Astronomical Observatories. 

 Scient. Proc. Royal Dublin Society. 1891. 



20. On an Improved Equatorial Telescope. Scient. Proc. Eoyal Dublin 

 Society. 1892. 



21. On a New Form of Equatorial Mounting for Monster Reflecting 

 Telescopes. Scient. Proc. Royal Dublin Society. 1894. 



22. Notes on a Paper recently published in the Astrophysical Journal (vol. v., 

 No. 2, February, 1897), by Professor E. Hale, of the Yerkes Observatory, Chicago, 

 on "The Comparative Values of Refracting and Reflecting Telescopes for 

 Astrophysical Observations." Scient. Proc. Eoyal Dublin Society. 1897. 



23. Note on the Results that may be expected from the proposed Monster 

 Telescope of the Paris Exhibition of 1900. Scient. Proc. Royal Dublin Society. 

 1899. 



24. On the Correction of Errors in the Distribution of Time Signals. 

 Scient. Proc. Royal Dublin Society. 1899. 



25. Proposal for the Utilization of the "Marconi" System of Wireless 

 Telegraphy for the Control of Public and other Clocks. Scient. Proc. Royal 

 Dublin Society. 1899. 



26. A New CoUimating Telescope Gun-sight for Large and Small Ordnance. 

 Scient. Trans. Royal Dublin Society. 1901. 



27. Some New Forms of Geodetical Instruments. Scient. Trans. Eoyal Dublin 

 Society. 1902. 



28. Registration of Star-Transits by Photography. Scient. Proc. Eoyal 

 Dublin Society. 1904. 



