Meteorological Observations. 487 



wards for an explanation of the statement which he has made to my 

 disadvantage, and I shall be much obliged by your allowing this note 

 a place in the next Number of the Annals. 



I am, dear Sir, yours faithfully, 



William B. Carpenter. 

 To Richard Taylor, Esq. 



P.S. — I may add, that the abstract of my paper in the 'Annales 

 des Sciences' is not an original one, but is copied from ' L'Institut,* 

 into which it appears to have been translated from the inaccurate 

 report of my paper in the ' Athenaeum ;' for it contains an egregious 

 blunder, for which I should be very sorry to be made responsible, — to 

 the effect that I propose to place the genus Pandora among the 

 Margaritacece, on account of the similarity in the structure of its 

 shell. This error was corrected by me in the 'Athenaeum,' on the 

 week following that in which the report appeared ; yet it has been 

 translated into the French journals without notice. An examination 

 of the original paper will show that it is entirely unsupported by it. 



6 North Crescent, Bedford Square, London, 

 May 15, 1844. 



METEOROLOGICAL OBSERVATIONS FOR APRIL 1844. 



Chiswick. — April 1. Foggy : dry haze : clear. 2 — 4. Very fine : clear and dry. 

 5, 6. Overcast : very fine : clear. 7. Clear and fine throughout. 8. Foggy : 

 clear and fine. 9. Fine: clear and dry. 10. Hot and very dry. 11. Fine. 



12. Fine : rain at night. 13. Cloudy: rain. 14. Hazy: showery. 15. Hazy: 

 very fine. 16. Hazy: cloudy : clear and fine. 17. Foggy : very fine. 18. Cloudy 

 and fine. 19 — 24. Very fine. 25. Slight haze : very fine. 26. Dry haze. 27, 



28. Clear and dry. 29. Fine : dry haze : cloudy. 30. Clear, with excessively 

 dry air. — Mean temperature of the month 3*44° above the average. 



Boston. — April 1. Foggy. 2 — 4. Fine. 5. Fine : rain a.m. 6 — 8. Fine. 

 9. Cloudy. 10. Fine, 11,12. Fine: rain p.m. 13. Cloudy : rain ?.m. 14, 

 Fine. 15. Cloudy. 16—19. Fine. 20, 21. Cloudy. 22—28. Fine. 29. Cloudy. 

 30, Fine.— .N. B. This month has been extraordinarily dry and vfaxm. 



Sandwich Manse, Orkney. — April 1, 2. Cloudy : showers. 3. Bright : showers. 

 4. Cloudy. 5. Cloudy; rain, 6. Clear : cloudy. 7. Cloudy. 8. Bright: cloudy. 

 9. Clear: cloudy. 10. Cloudy. 11. Showers: clear. 12. Clear: cloqdy. 



13. Cloudy : rain. 14. Bright : cloudy. 15. Bright: showers. 16. Cloudy, 

 17, 18. Bright : showers. 19. Rain: cloudy. 20. Bright : cloudy. 21, Cloudy, 



22. Cloudy: showers. 23. Cloudy: sleet-showers. 24. Bright: cloudy. 25. 

 Rain: fine. 26. Rain : showers. 27, Hail-showers : clear, 28. Bright: clear, 



29. Clear. 30. Bright : clear. 



Applegarth Manse, Dumfries-shire.— A\iYil 1. Fine. 2. Dull: rain p.m. S. 

 Rain. 4. Fair, except one slight shower. 5. Rain. 6. Fine : hoar-frost, 7. 

 Fine. 8, Fine, but cloudy. 9. Wet a.m. : fine, 10. Fine, 11. Fine: one 

 slight shower, 12, 13, Rain, 14, 15. Wet. 16, Hoar-frost, 17, Fair: 

 rain P.M. 18,19. Fair. 20. Fair and fine. 21. Fine : one slight shower. 22, 



23. Fine. 24. Shower early a.m. 25. Fair. 26. Fair ; heavy dew. 27. Fair. 

 28, 29. Hoar-frost. 30. Fair and dry. 



Mean temperature of the month , 47°'2 



Mean temperature of April 1843 46 '4 



Mean temperature of spring water 50 '5 



Mean temperature of ditto April 1843,., 47 "0 



