138 



Hawkins (J. J.) on paving roads and 

 streets with wood, 127. 



on folding plates in books and 



maps for the pocket, 132. 



Heat disengaged in combustion, on 

 measuring, 20. 



Herschel (Sir J. F. W.) on a very re- 

 markable property of the extreme 

 red rays of the prismatic spectrum, 9. 



Hess (Prof.) on an apparatus for the 

 analysis of organic substances, 5/. 



Hodgkinson (E.) on the power of dif- 

 ferent species of wood to resist a 

 force tending to crush them, 125. 



' , on the temperature of the earth 



in deep mines, IQ. 



Hodgson (J.) on the red appearance 

 on the internal coat of arteries, 108. 



Holothuria grandis, 80. 



• fucicola, 80. 



brevis, 80. 



■ fusiformis, 80. 



lactea, 80. 



pellucida, 80. 



Hopkins (W.) on the minimum thick- 

 ness of the crust of the globe, 26. 



Hydrobromic acid, decomposition of 

 terchloride and termuriate of gold 

 by, 42. 



Ichthyosaurus, discovery of an, 70. 



Idocrase, on the composition of, 52. 



India, meteorological phenomenon in 

 the ghats of, 15. 



Indigestion, alkaline, on, 10/. 



Inglis (Dr.) on the increase of small- 

 pox, and origin of Variola-vaccinia, 

 104. 



Iron, cast and malleable, and steel, 

 relative combinations of the con- 

 stituents of, 49. 



, effects of weights acting for an 



indefinite time upon bars of, 126. 



Ivory, softened, on instruments made 

 from, 109. 



Jeffries (Mr.) on warming and venti- 

 lating, 131. 



Jones (Prof. R.) on an apparatus for 

 observing fish in confinement, 93. 



King (Mr.) on a new kitchen range, 



132. 

 Kingston-upon-Hull, account of the 



circulating libraries in, 127. 



Knipe (J. A.) on a basaltic dyke in 

 the vale of Eden, 67. 



Lamp, safety new, 64. 

 Langton (W.) on the educational con- 

 dition of Rutland, 110. 

 Lankester (E.), on the formation of 

 woody tissue, 78. 



on the preparation of fishes for 



museums, 82. 



notice of the white bream {Ahra- 



mis blicca), 94. 



Lardner (Dr.) on an apparatus for 

 use in working railways, 129. 



Lead, protoxide of, 44. 



sulphate and nitrate of, 45. 



■ ' tartrate and racemate of, 49- 



Libraries, circulating, in Kingston- 

 upon-Hull, account of the, 127. 



Light, on the use of mica in polari- 

 zing, 6. 



, new case of the interference 



of, 1. 



Liquids, fluency or viscidity of, at the 

 same and different temperatures, 22. 



Lloyd (Prof.) on the best position 

 of three magnets, in reference to 

 their mutual action, 12. 



Lloyd (Dr. G.) on the geology of 

 Warwickshire, 73. 



Longitude, difference of, between 

 Greenwich and New York, 27. 



Lyell (C.) on the origin of "sand- 

 pipes " in the chalk near Norwich, 

 65. 



on remains of mammalia in the 



crag and London clay of Suffolk, 

 69. 



Macartney (Dr.) on haemorrhage from 

 arteries, 97. 



on rules for finding with exact- 

 ness the position of the principal 

 arteries and nerves, 102. 



Mackay (Dr.) on Matias bark, 61. 



Magnets, on the best position of three, 

 in reference to their mutual action, 

 12. 



Mammalia, in the crag and London 

 clay of Suffolk, on remains of, 69. 



, on the follicular stage of denti- 

 tion in the, 82. 



Marrat (W.) on the discovery of an 

 ichthyosaurus, 70. 



Marshall (J. G.) description of a sec- 



