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On the Rapidity of the Passage of Crystalloid Substances into the Vascular 

 and Non-vascular Textures of the Body. By Henry Bence Jones, F.R.S. 63 



Monthly Magnetical Observations taken at the College Observatory, Stony- 

 hurst, in 1864. By the Rev. Walter Sidgreaves 65 



Chemical Examination of the Fluid from the Peritoneal Cavity of the Ne- 

 matode Entozoa. By Dr. W. Marcet, F.R.S 69 



On the Commissures of the Cerebral Hemispheres of the Marsupialia and 

 Mouotremata. as compared with those of the Placenta! Mammals. By 

 W. H. Flower, F.R.S 71 



Note on the Atomicity of Aluminium. By Professor A. W. Williamson, 

 F.R.S., President of the Chemical Society 74 



On the Synthesis of Tribasic Acids. By Maxwell Simpson, M.D., F.R.S. . 77 



Notes of Researches on the Acids of the Lactic Series. No. III. Action of 

 Zincethyl upon Ethylic Leucate. By E. Frankland, F.R.S., and B. F. 

 Duppa, Esq 79 



Notes of Researches on the Acids of the Lactic Series. No. IV. Action of 

 Zinc upon Oxalic Ether and the Iodides of Methyl and Ethyl mixed in 

 atomic proportions. By E. Frankland, F.R.S., and B. F. Duppa, Esq. . . 83 



On New Cornish Minerals of the Brochantite Group. By Professor N. 

 Story Maskelyne, M.A., Keeper of the Mineral Department, British 

 Museum 86 



Preliminary Notice on the Products of the Destructive Distillation of the 

 Sulphobenzolates. By John Stenhouse, LL.D., F.R.S., &c 89 



Preliminary Note on the Radiation from a Revolving Disk. By Balfour 

 Stewart, M.A., F.R.S., and P. G. Tait, M.A 90 



On the Quadric Inversion of Plane Curves. By T. A. HIRST, F.R.S 91 



On the Marsupial Pouches, Mammary Glands, and Mammary Foetus of the 

 Echidna Hystrix. By Professor Owen, F.R.S 106 



Numerical Elements of Indian Meteorology. Series II. Insolation, and its 

 Connexion with Atmospheric Moisture. By Hermann von Sclilagint- 

 weit HI 



On the Structure and Development of the Skull of the Ostrich Tribe. By 

 WiUiam Kitchen Parker, Esq 112 



On the Magnetic Character of the Armour-Plated Ships of the Royal Navy, 

 and on the effect on the Compass of particular arrangements of Iron in a 

 Ship. By Frederick John Evans, Staff- Commander R.N., F.R.S., Super- 

 intendent of the Compass Department H.M. Navy, and Archibald Smith, 

 M.A., F.R.S., Corresponding Member of the Scientific Committee of the 

 Imperial Russian Navy 114 



Inferences and Suggestions in Cosmical and Geological Philosophy. By 

 E. W. Brayley, F.R.S ".120 



On Zoological Names of Characteristic Parts and Homological Interpreta- 

 tions of their Modifications and Beginnings, especially in reference to 

 Connecting Fibres of the Brain. By Professor Owen, F.R.S 129 



Reply to Professor Owen's Paper " On Zoological Names of Characteristic- 

 Parts and Homulogical Interpretations of their Modifications and Be- 



