Meteorological Observations, 319 



problem, Mr. Tozer considers the attempt at accurate investiga- 

 tion to afford the best means of analysing the processes which the 

 mind employs ia arriving at its conclusions, when the correctness or 

 incorrectness of those conclusions is incapable of demonstration ; and 

 by showing where the data are insufficient, of suggesting the nature 

 of the observations by which they may be supplied, and thus of 

 gradually approximating the science to which the problem belongs 

 to the demonstrative sciences. 



Scientijic Works lately published. 



Taylor's Scientific Memoirs — Part VIII. completing the Second 

 Volume. 



Catalogues of the Miscellaneous Manuscripts and of the Manu- 

 script Letters in the possession of the Royal Society. 



The Philosophical Transactions. Part II. 1840. 



A Description of British Guiana, Geographical and Statistical : 

 exhibiting its Resources and Capabilities, together with the present 

 and future Condition and Prospects of the Colony. By Robert H. 

 Schomburgk, Esq. 



On the Heat of Vapours and on Astronomical Refractions. By 

 Sir J. W. Lubbock, Bart. 



METEOROLOGICAL OBSERVATIONS FOR FEB. 1841. 



Chiswick. — Feb. 1. Snowing. 2. Snow-showers. 3. Frosty : dry and cold : 

 very severe frost at night. 4. Frosty : overcast. 5. Dry cold haze : windy at 

 night. 6. Boisterous. 7. Boisterous: hazy and cold. 8 — 11. Hazy and cold. 

 12. Dense fog : very fine : rain. 13. Overcast : rain. 14. Rain: cloudy. 15. 

 Cloudy : slight rain. 16, 17, Hazy. 18. Fine. 19. Rain; cloudy and fine, 

 20. Cloudy and fine: rain. 21. Overcast and fine. 22. Dense fog. 23. Hazy : 

 rain. 24, Hazy and cold. 25. Cloudy and cold : rain. 26. Rain. 27. Cloudy : 

 rain. 28. Very clear : cloudy and tine. 



Boston. — Feb. 1. Cloudy : snow a.m. and p.m. 2. Fine : snow early a.m. : 

 snow P.M. 3. Cloudy: snow early a.m. and p.m. 4,5. Cloudy. 6, 7. Stormy. 

 8. Cloudy: snow p.m. 9, 10. Cloudy. 11 — 13. Cloudy : rain p.m. 14. Cloudy. 

 15. Cloudy: rain P.M. 16. Cloudy. 17. Rain. 18, 19. Cloudy. 20,21. 

 Fine. 22, 23. Foggy, 24. Rain, 25, Cloudy : rain p.m. 26. Rain : rain p.m. 

 27. Rain, 28. Fine, 



Applegarlh Manse, Dumfries-shire. — Feb. 1, 2. Sprinkling of snow : frost p.m. 

 3. Snow-showers : frost. 4. Frost : fair but cloudy. 5. Frost : sprinkling of 

 snow. 6. Frost: occasional snow-showers. 7, Frost: severe and cold, 8, 9, 

 Frost: cold and withering. 10. Frost, but giving way. 11. Thaw and heavy 

 rain : sleet. 12. Fog: rain: fine thaw, 13. Rain all day. 14, Rain in the 

 evening : mild. 15, Rain all day, 16,17. Fair but cloudy. 18, Wet all day, 

 19. Clear and cold. 20. Fine. 21, 22. Fine, but cloudy. 23. Rain a.m : 

 moist p.m. 24. Clear and cold. 25. Cloudy and threatening rain. 26. Cloudy 

 with high w ind. 27. Frost in the morning. 28. Frost in the morning with 

 snow on the hills. 



Sun shone out 19 days. Rain fell 8 days. Frost 1 1 days. Snow 6 days. 



Wind north 1 day. North-east 8 days, Eastnorth-cast 2days. East2days. 

 East^south-cast 1 day. South-east 4 days. South 4 days. South-west 2 days. 

 West 1 day. North-west 1 day. North-north-west 2 days. 



Calm 6 days. Moderate 1 1 days. Brisk 4 days. Strong breeze 4 days. 

 Boisterous 3 days. 



Mean temperature of the month 36°"50 



Mean temperature of February 1840 36 '78 



Mean temperature of spring-water 42 -60 



Mean temperature of spring-water,Feb.l840 44 '16 



