Krattse Professor F. M. — Notice of the Geology of the Haddon District, 

 eight miles south-west of Ballaarat, Victoria, p. 57. 



Mackeeeth Rev. Thomas, F.E.A.S , F.E.Met.S.— On the Effects of Solar 

 Eadiation in Atmospheric Vapour, p. 47. On the recent Coloured 

 Skies at Sunset and Sunrise, p. 52. 



MuEPHT Joseph John. — On the Quantification of the Predicate, and on 

 the Interpretation of Boole's Logical Symbols, p. 33. 



Ehodes James, M.E.CS. — On the Duality of Physical Forces, p. 4. 



Eoscoe Professor H. E., Ph.D., LL.D., F.E.S., &c.. President. — On a new 

 variety of Halloysite from Maidenpek, Servia, p. 41. Eemarks on 

 the first volume of the collected Scientific Papers of Dr. Joule, 

 published by the Council of the Physical Society of London, p. 61. 



SoHORLEMMER C, F.E.S. — On the leaves of Catha edulis, p. 3. On the 

 introduction of Coffee into Arabia, p. 55. 



Ward H. Marshall, M.A. — On the Fungus of the Salmon Disease — 

 Sajprolegnia ferax, p. 29. 



Ward Thomas.— On the Action of Water upon beds of Eock Salt, p. 5. 



Waters Arthur Wm., F.G.S., F.L.S. — On a method of Mounting Elec- 

 trical Eesistances, p. 43. 



Wilde Henet. — On Volcanic Dust from the Eruption of Krakatoa on 

 August 27th, 1883; and on some Glassy Lava from the great 

 Volcano of Kilauea in Hawaii, and known as " Pele's Hair," p. 40. 



Meetings of the Physical and Mathematical Section. — Annual, p. 

 82; Ordinary, pp. 46, 82. 



