VI 
Hull Edward, F.B.S. — On the Nature of the Boundary between the Carbon- 
iferous and the Triassic or Permian Bocks of Cheshire, p. 58. 
Hurst H. A. — On the Use of the Ordinary Circular Bail way Beading Lamp 
for Illuminating Microscopical Objects, p. 194. 
Joule J. P., LL.D., F.B.S. , P. — On an Appearance of the Setting Sun, p. 1. 
On Disturbances pf Magnetic Dip, p. 55. Determination of the 
Horizontal Magnetic Intensity, p. 61. On the Progressive Bise of 
the Freezing Point of a Thermometer, p. 101. 
Jevons Professor W. Stanley, M.A. — On the so-called Molecular Move- 
ments of 'Microscopic Particles, p. 78. On a General System of 
Numerically Definite Beasoning, p. 84. 
Lund Edward, F.B.C.S. — On the Sources of the High Death-rate of 
Manchester, p. 114. 
Mackereth Thomas, F.B.A.S. — Besults of Bain-gauge and Anemometer 
Observations made at Eccles, near Manchester, during the year 1869, 
p. 124. 
Morton E. H. — On the Composition of the Water of the Irish Sea, p. 146. 
Bansome Arthur, M.D., M.A. — On the Organic Matter of Human Breath 
in Health and Disease, p. 106. On the Germination and Early 
Growth of Plants, p. 184. 
Reynolds Professor Osborne, M.A. — On the Suspension of a Ball by a 
Jet of Water, p. 115 and p. 133. 
Roberts William, M.D. — On Cystine Calculi, p. 61. 
Routledge B. — On the Suspension of a Ball by a Jet of Water, p. 133. 
Schunck Edward, Ph.D. F.B.S., Y.P. — On Vogelsang and Geissler’s 
Experiments on the Nature of the Liquids enclosed in certain 
Minerals, p. 4. On Artificial Alizarine, p. 106. 
Sidebotham J. — On Varieties in Lepidoptera, p. 112. On Besinous Vapour 
in Cabinets made of Pencil Cedar, p. 34. Notes on the Pupa and 
Imago of Acherontia atropos, p. 62. On Pholas-bored Bocks, p. 110. 
On some Shell Deposits at Llandudno, p. 121. 
Smith B. Angus, F.B.S., V.P. — On Organic Matter in the Air, p. 65. 
Spence Peter, F.C.S. — Heating Saturated Saline Solutions to their Boiling 
Points by Steam at 212°, p. 87. 
Thomson Sir William, F.B.S, — On the Size of Molecules, p. 136. 
Thorpe T, E., Ph.D. — On Nontronite, p. 1. On a New Chromium 
Oxychloride, p. 15. On the Composition of the Water of the Irish 
Sea, p. 146. 
