Feb. 13, 1879] 



NATURE 



CXVll 



DIARY OF SOCIETIES. 



London 



THURSDAY, February 13. 

 Royal Society, at 8.30.— Note on the Development of the Olfactory Nerve 

 and Olfactory Organ of Vertebrates : Dr. Milnes Marshall. — On the De- 

 velopment of the Skull and its Nerves in the Green Turtle (Chelonc 

 midas), with Remarks on the Segmentation seen in the Skull of Various 

 Types : PVof. Parker. — An Experiment by Mr. J. E. H. Gordon showing 

 an Extension of the Phenomena discovered by Dr. Kerr, viz., a New 

 Relation between Electricity and Light. 

 Mathematical Society, at 8. — On a Modular Equation, on Prof. Cayley's 

 Foimula, and on the Formula for Four Abelian Functions answering to 

 the Formula for Four Theta Functions: Prof. H. J. S. Smith, F.R.S — 

 On the Number of Conies which satisfy Five Independent Conditions : M. 

 Halphen.— Construction of Magic Squares: Sir J. Cockle, F.R.S. — 

 Quaternion Proof of Minding's Theorem: J. J. Walker.— Notes on 

 . Frames: Prof. Henrici, F.R.S. 

 Royal Institution, at 3. — Sound: Prof. Tyndall. 

 Society of Arts, at 8. — ^foxious Vapours : A. G. Phillip. 

 London Institution, at 7. 

 Gresham College, at 6. — Recent Solar Eclipse: Rev. E. Ledgei. 



FRIDAY, February 14. 

 Royal Institution, at 9. — November Meteors : Prof. Johnstone Stoney. 

 QoKKETT Microscopical Club, at 8. 



Gresha.m College, at 6. — Recent Solar Eclipse: Rev. E. Ledger. 

 Royal College of Surgeons, at 4. — Evolution of the Vertebrata: Prof. 

 Parker. 



SATURDAY, February 15. 

 Royal Institution, at 3. — Lessing : R. W. Macan. 



SUNDAY, February 16. 

 Sonday Lecture Society, at ^. — English Freethinkers of the Eighteenth 

 Century: A. Elley Finch. 



MONDAY, Febru.\ry 17. 

 Society of Arts, at 8. — Dwelling Houses; their Sanitary Construction, 



&c. : Dr. Corfield. 

 London Institution, at 5. — History of the Ironclad : F. J. Palmer. 

 Roy.\l College of Surgeons, at 4. — Evolution of the Vertebrata: Prof. 



Parker. 

 Medical Society, at 8.30. 



Victoria Institute, at 8. — Topography of the Sinaitic Peninsula ; Rev. 

 F. W. Holland. 



TUESDAY, February 18. 

 Zoological Society, at 8.30. — Note on Pachycepkala icieroides, Peale, 

 with Description of a supposed New Species ; E. L. Layard, C.M.G. 

 — Descriptions of Four New Species of Chamaeleons from Madagascar : 

 Dr. A. Gunther, F.R.S. — On a Collection of MoUuscafrom Japan : Edgar 

 A. Smith. 

 Royal Institution, at 3. — Animal Development : Prof. Schafer. 



WEDNESDAY, February 19. 

 Meteorological Society, at 7. — Diurnal Variations of the Barometric 

 Pressure in the British Isles : Frederick Chambers. — On a Standard Cistern 

 Siphon Barometer : Frederick Bogen. — On the Relation existing between 

 the Duration of Sunshine, the Amount of Solar Radiation, and the Tem- 

 perature indicated by the Black Bulb Thermometer in vacuo: G. M. 

 Whipple, b.Sc, F. R.A.S. — Results of Meteorological Observations made 

 at Buenos Ayres : William B. Tripp, Assoc. Inst. C.E. 

 Croydon Microscopical Club, at 8.30. 

 Society of Arts, at 8. — Turkish Resources : J. L. Haddan. 

 Royal College of Surgeons, at 4.— Evolution of the Vertebrata: Prof. 

 Parker. 



THURSDAY, February ao. 

 Royal Society, at 8.30. — On Electrical Insulation in High Vacua : W. 



Crookes. 

 Royal Institution, at 3.— Sound : Prof. Tyndall. 

 London Institution, at 7. — Fixed Water : Prof. Guthrie. 

 LiNNEAN Society, at 8.-— On the Genus Oudtteya, Brown : Dr. Henry 

 Trimen. — On the Nature of the Inflorescence : Dr. Maxwell Masters. — 

 On some South American Genera of Plants of Uncertain Position : John 

 Miers. 

 Chemical Society, at 8. — Investigations into the Action of Substances in 

 the Nascent and Occluded Conditions. Hydrogen (continued): Dr. 

 Gladstone and Mr. Tribe. — On some Methods of Vapour Density Deter- 

 mination : J. T. Brown. — On the Quantitative Blow-pipe Assay of Mercury: 

 G. Attwood. 



FRIDAY, February 21. 

 Royal iNSTmrriON, at 9.— A New Chemical Industry : Prof. Roscoe. 

 Royal College of Surgeons, at 4, — Evolution of the Vertebrata: Prof. 



Parker. 

 Geological Society, at 8. — Anniversary. 



SATURDAY, February 22. 

 Physical Society, at 3. — On a Current Regulator: Dr. C. W. Siemens, 

 F.R.S. — On a New Theory of Terrestrial Magnetism: Professors Ayrton 

 and Perry. — On the Spectrum of Lightning : Dr. A. Schuster. 

 Royal Institution, at 3. — Lessing: R. W. Macan. 



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CHEMISTRY.— PRELIMINARY SCIENTIFIC AND FIRST B.Sc. 

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ELTOFT'S COMBINED NOTE-BOOK 



and LECTURE NOTES for CHEMICAL STUDENTS. 3^- C'^- 

 SIMPKIN, MARSHALL, & CO. 



MR. OAKLEY COLES' WORKS. 



In preparation. Third Edition, demy 8vo. 



DEFORMITIES OF THE MOUTH, their Mechanical 

 Treatment. With an Appendix of Illustrative Cases. London : 

 Churchill, New Biu-lington Street. 



Opinions of the Press on the First and Second Editions. 

 LANCET, November 28, 1868.— " The work is full of useful information 



of every day utility to the practitioner." 



LANCET, July 0. 1870.— "The Second Edition of this work shows 

 that the author has continued to devote himself with zeal to the investigation 

 and treatment of a very interesting class of cases. We recommend the 

 work to the study of both Surgeons and Dentists." 



BRITISH JOURNAL OF DENTAL SCIENCE, August, 1870. 

 — " The Second Edition bears upon its pages the most satisfactory evidence 

 of the industry and zeal with which he has followed up the study and prac- 

 tice of the specialty he has devoted himself to with so much success 



Altogether we must heartily congratulate Mr. Coles on this creditable com- 

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 Jcnown." 



A MANUAL OF DENTAL MECHANICS. With 

 150 Illustrations. Churchill, New Burlington Street. 

 Opinion of the Press. 

 AMERICAN DENTAL REGISTER, November, 1874.— "The 

 work we regard as a very valuable one to the student, and, indeed, for the 

 Practitioner. It should be in every Dentist's library." 



NOTES FOR DENTAL STUDENTS. 25. Qd. 



Butcher, 4, Crane-court, Fleet Street. 



Opinion of the Press. 



BRITISH JOURNAL OF DENTAL SCIENCE, Augast, 1876. 



— " We cordially welcome this useful little book Of great value 



to those preparing for the Dental Diploma We hope there will 



soon be a Second Edition needed." 



THE DOCTOR, September, 1876.— " Carefully arranged and very 

 complete. Indeed they seem to try to take in rather more than suEScient for 



Dental students We have no other fault to find with this note-book, 



which appears a model of what such a work should be." 



THE MOUTH AND TEETH DURING PREG- 



NANCY. Reprinted by permission from the Transactions of the 

 Odontological Society. Pp. 31. Price is. 6d. London : Wyman and 

 Sons, Great Queen Street. 



Opinion of the Press. 

 THE BRITISH MEDICAL JOURNAL.— "The author has 

 evidently paid considerable attention to the subject, and p^ives many useful 

 hints as to the management and relief of the distressing toothache and 



neuralgia complicating pregnancy The remarks on treatment are 



practical, and will repay perusal The practitioner wll do well to 



carry out the suggestions offered by the author. 



With 9 Engravings, 8vo, ts. 



TWO LECTURES on SCHOOL LIFE : 



Its Influence on Sight and Figure, and especially on the Spine. 



By R. LIEBREICH, 



Consulting Ophthalmic Surgeon to St. Thomas's Hospital. 



J. & A. CHURCHILL, New Burlington Street 



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