Obituary Notices. xxix 
11. “Meteorological Observations made at Edinburgh during the Solar 
Eclipse of 7th July 1833.” 
12. “A Method of Freeing the Determination of the Latitude of an 
Observatory from the consideration of Atmospheric Refraction.” August 
1833. 
13. “First Essay preliminary to the series of Reports ordered by the 
Society of Arts. for Scotland.” September 1834. 
14. “ On a certain Relation between the Successive Prime Numbers.” Laid 
before the British Association. 
15. “ The First Book of the Geometry of Sines of the Third Order.” Laid 
before the British Association. 
16. “ Second Essay preliminary to the series of Reports ordered by the 
Society of Arts, Scotland.” October 1834. 
17. “Report on the Recent Improvements in the Carpet Manufacture.” 
August 1835. 
18. “On the Manner in which Friction affects the Motions of Time- 
keepers.” July 1835. 
19. “Suggestion of a New Experiment whereby the Rotation of the Earth 
may be Demonstrated.” January 1836. Read before the Society of Arts, 9th 
March 1836. 
20. “ Account of an Improvement in the Construction of Wollaston’s 
Goniometer.” Society of Arts, 1836. 
21. “Annual Report on the State of the Useful Arts.” Read before the 
Society of Arts, 7th December 1836. 
22. ‘ 11 On the Construction of a Solid Achromatic Eyepiece.” Royal Society, 
6th January 1837. 
23. “On the Construction of Eyepieces for Transmitting only one of the 
Pencils of Polarised Light.” 30th January 1837. 
24. “Second Report on the Progress of Exactitude in the Manufacture of 
Machines.” June 1837. 
25. “Notice of Precautions to be taken while using Mr Adie’s Ane- 
mometer.” Society of Arts, January 1838. 
26. “Notice of a Method of Determining the Velocity of the Wind.” 
Society of Arts, 10th January 1838. 
27. “Notice of a Singular Phenomenon connected with the Rotatory 
Motion of Fluids.” Society of Arts, 14th February 1838. 
28. “Description of the Phoroscope, an instrument for Measuring Time 
and Velocity.” Society of Arts, 28th February 1838. 
29. “ Description of an Improved Nut for Leading Screws.” Society of 
Arts, 28th March 1838. 
30. “Notice of a Dioptric Light erected at Kirkcaldy Harbour, 
with a Description of the Apparatus used in Making the Lens.” April 
1838. 
31. “Theory of the Construction of Oblique Arches.” May 1838. 
32. “Notice of an Erroneous Method of using the Great Theodolite, 
practised by the Ordnance Surveyors, with a Strict Analysis.” November 
1838. 
33. “ On a Method of obtaining the greatest possible Exactitude from the 
Data of a Survey.” January 1839. 
