1841. 

 Feb. 8. — (1) On the Crystallization of Snow, (with illus- 

 trative Drawings.) — Dr. Sutherland. 

 (2) On the Theory of the Formation of Coal. — 

 Rev. T. Dwyer. 

 „ 22.— On the Calder Stones at Woolton. — Mr. F. H. 

 Rankin. 

 March 1 . — On Composition, and Light and Shade in Paint- 

 ing. — Mr. Illidge. 

 „ 15. — On the Theory of the Egyptian Calendar. — Mr. 



S. Gibson. 

 „ 22. — On the Life and Works of Raphael D'Urbino. — 



Mr. Winstanley. 

 „ 29. — (1) On Marsh's test, for the Detection of very 

 Minute portions of Arsenic, (illustrated by the 

 Apparatus.) — Dr. Brett. 

 (2) On the recent Progress made in Great Britain 

 and America, towards establishing an Unifor- 

 mity in the Manner of Spelling and Printing 

 Words for the Use of the Blind. — Dr.Bryce. 



SESSION XXXI. 



Nov. 1. — (1) Introductory Discourse, by the President.— 

 Dr. Tattershall. 

 (2) On Personal Nomenclature — Part I. — Mr. 

 J. F. Rankin. 

 „ 15. — On Atmospheric Electricity — Part I. — Mr. 



Spencer. 

 „ 29. — Do. Do. Part II. (conclusion.) 



— Mr. Spencer. 

 Dec. 13. — On Thermo Electricity. — Dr. Sutherland. 

 „ 27. — On the Ventilating Forces in our Atmosphere. — 



Mr. Adie. 

 1842. 

 Jan. 10. — On Personal Nomenclature, Part II. (conclusion.) 

 — Mr. F. H. Rankin. 

 ,, 24. — Was the Iliad the work of more than one Author ? 

 Rev. J. Robberds. 

 Feb. 7. — On the Mode of detecting Minute Quantities of 

 Arsenic, and distinguishing that Metal from 

 Antimony. — Dr. Brett- 



