318 Meteorological Observations for February 1831. 



LECTURES ON GEOLOGY. 



Mr. John Phillips, F.G.S., Author of Illustrations of the Geo- 

 logy of Yorkshire, and of several papers on Geology in the Phil. 

 Mag. and Annals, will deliver a Course of Lectures on Geology, at 

 the University of London, during the months of April and May. 



NEW SCIENTIFIC BOOKS. 



Just published. 



The Utility of the Knowledge of Nature considered; with re- 

 ference to the introduction of Instruction in the Physical Sciences, 

 into the General Education of Youth : comprising, with many addi- 

 tions, the details of a Public Lecture on that subject, delivered at 

 Hazelwood School, near Birmingham, October 26th, 1830. By 

 E. W. Brayley, Jun. A.L.S., Lecturer on Natural Philosophy and 

 Natural History ; Teacher of the Physical Sciences in the Schools 

 of Hazelwood and Bruce Castle. 8vo. 



LUNAR OCCULTATIONS. 



Occultatiom of Planets and Jtxed Stars by the Moon, in April 1831. 

 Computed for Greenwich, by THOMAS HENDERSON, Esq. ; and 

 circulated by the Astronomical Society. 



METEOROLOGICAL OBSERVATIONS FOR FEBRUARY 1831. 



Gosport: Numerical Results for the Month. 



Barom. Max. 30-431. Feb. 23. Wind W. Min. 29-134. Feb. 1. Wind S.W. 

 Range of the mercury 1-297. 



Mean barometrical pressure for the month 29-913 



Spaces described by the rising and falling of the mercury 6-140 



Greatest variation in 24 hours 0-644. Number of changes 18. 

 Therm. Max. 60. Feb. 9. Wind S.W. Min. 31. Feb. 5. Wind N.W. 

 Range 29. Mean temp, of exter. air 4470. For 29 clays with in S 42-24 

 Max. var. in 24 hours 18 0f OO. Mean temp, of spring-water at 8 A.M. 48-65 



De Luc's Whalebone Hygrometer. 



Greatest humidity of the atmosphere, in the evening of the 24th ... 96 

 Greatest dryness of the atmosphere, in the afternoon of the 28th... 56 



Range of the index 40 



Mean at 2 P.M. 72-6. Mean at 8 A.M. 79-7. Mean at 8 P.M. 80'3 



of three observations each day at 8, 2, and 8 o'clock 77'5 



Evaporation for the month I '15 inch. 



Rain in the pluviameter near the ground 2-40 inches. 



Prevailing winds, N.W. and S.W. 



Summary 



