CONTENTS. Vii 



Page 

 Dr. Spittal's Experiments and Observations on the Cause of the Sounds of 



Respiration 2 22 



Dr. A. T. Thomson on the Medicinal and Poisonous Properties of .some of 



the Iodides 223 



Dr. Adams on the Placenta Souffle 123 



Dr. J. Reid's Experimental Investigation into the Functions of the Eighth 



Pair of Nerves 1 24 



Mr. T. M. Greenhow on the Beneficial Effects of Mercurial Action rapidly 



induced, more especially in certain forms of Neuralgic Disease 124 



Mr. R. M. Glover on the Functions of the Rete Mucosum and Pigmen- 



tum Nigrum, in the Dark Races of Mankind 125 



Dr. Inglis's Remarks on the Skull of Eugene Aram 125 



Dr. G. O. Rees on the Chemical Analysis of the Liquor Amnii 126 



Dr. R.D.Thomson on Mr. Farr's Law of Recovery and Mortality in Cholera 126 

 Dr. Dalziel on Sleep, and an Apparatus for promoting Artificial Respiration 127 



Dr. Yelloly on an Improved Acoustic Instrument 129 



Mr. J. Blake on the Action of various Substances on the Animal Economy, 



when injected into the Veins 129 



Dr. A. B. Granville on an Improved Stethoscope 129 



Mr. T. M. Greenhow on Fractures 130 



Dr. Crawford on a Case of Anthracosis in a Lead Miner 130 



Dr. D. B. Reid on the Amount of Air required for Respiration 131 



Dr. Robert D. Thomson on the Modus Operandi of Nitrate of Silver as a 



Caustic and Therapeutic Agent 132 



Mr. R. Torbock's Observations upon Uterine Haemorrhage, and Practical 



Hints on the best mode of arresting it 133 



Dr. Bellingham on the occurrence of Crystals in the Human Intestines... 134 



Dr. Thomas Barnes on Abscess of the Lungs 134 



Professor Owen on the Structure of Teeth, and the resemblance of Ivory 



to Bone, as illustrated by microscopical examination of the Teeth of 



Man, and of various existing and extinct Animals 135 



MECHANICAL SCIENCE. 



Count Augustus Breunner on the Use of Wire Ropes in Deep Mines ... 150 

 Mr. B. Green on the Timber Viaducts now in progress on the Newcastle 



and North Shields Railway 150 



Mr. Peter Nicholson's Outline of the Principles of the Oblique Arch ... 152 

 Mr. W_. H. Miller on an Alteration in the Construction of Wollaston's 



Goniometer, by which its Portability is increased 153 



Mr. C. Babbage's short Account of a Method by which Engravings on 

 Wood may be rendered more useful for the Illustration and Description 



of Machinery j^a 



Professor Willis on the Odontograph ' 154 



Mr. Thomas Sopwith's Description of an Improved Leveling Stave for 



Subterranean as well as Surface Leveling I54 



Mr. Thomas Sopwith's Description of Instruments to facilitate the Draw- 

 ing of Objects in Isometrical Projection I55 



Mr. Thomas Sopwith on an Improved Method of constructing large Tables 

 or Writing-Cabinets, adapted to save much time, and to secure a sy- 

 stematic arrangement of a great number and variety of Papers 156 



Mr. Thomas Sopwith's Suggestions on the practicability and importance 



of preserving National Mining Records 156 



Mr. Lang on Improvements in Ship Building \ I57 



Mr. T. Motley on the Construction of a Railway with Cast-Iron Sleepers] 

 as a Substitute for Stone Blocks, and with continuous Timber Bearing. . 157 



