Meteorological Observations. 79 



mical and Microscopical Characters of the Blood, and Secretions 

 of the Human Body. By J. W. Griffith, M.D., F.L.S. 



The Catalogue of Stars of the British Association for the Advance- 

 ment of Science; containing the Mean Right Ascensions and 

 North Polar Distances of Eight Thousand Three Hundred and 

 Seventy-seven Fixed Stars, reduced to January 1, 1850: together 

 with their Annual Precessions, Secular Variations, and Proper 

 Motions, as well as the Logarithmic Constants for computing 

 Precession, Aberration and Nutation. With a Preface explanatory 

 of their Construction and Application, by the late Francis Baily, 

 Esq. 



The Report of the Fifteenth Meeting of the British Association for 

 the Advancement of Science, held at Cambridge in June 1845. 



METEOROLOGICAL OBSERVATIONS FOR MAY 1846. 

 Chiswick. — May 1 . Dry haze : overcast. 2. Overcast. 3. Dry haze. 4. Cloudy 

 and fine. 5. Very fine : showers. 6. Showery : cloudy and fine. 7. Cloudy and 

 fine. 8. Overcast: exceedingly fine: clear at night. 9. Very fine. 10. Slight 

 rain: cloudy: clear. 11, 12. Very fine. 13. Light clouds : overcast : rain at 

 night. 14. Clear : cold and dry. 15. Cloudless: light clouds and fine : clear 

 and cold at night. 16. Uniformly overcast : dry haze : densely overcast at night. 



17. Overcast: rain: clear. 18. Rain: cloudy: boisterous. 19. Very fine : 

 thunder-showers : densely overcast. 20. Rain : heavy showers. 21 — 23. Very 

 fine. 24. Slight fog : overcast and fine. 25,26. Very fine. 27. Cloudless: 

 very fine : overcast. 28, 29. Very fine. 30. Hot and dry. 31. Cloudless : hot 

 and sultry : clear. 



Mean temperature of the month 56°"16 



Mean temperature of May 1845 50-04 



Mean temperature of May for the last twenty years ... 54 *77 



Average amount of rain in May 1*84 inch. 



Boston. — May 1. Fine. 2 — 4. Cloudy. 5, 6. Fine : rain p.m. 7. Cloudy. 



8,9. Fine. 10. Cloudy: rain early a.m. 11,12. Fine. 13. Cloudy. 14 — 16. 



Fine. 17. Cloudy: rain early a.m. 18. Cloudy : rain a.m.: thunder p.m. 19. 



Fine. 20. Fine : hail and rain a.m. and p.m., with thunder and lightning. 



21. Cloudy. 22. Fine: rain p.m. 23,24. Fine. 25,26. Cloudy. 27 — 29. Fine. 



30. Fine: 3 o'clock p.m. 75°. 31. Fine. — N.B. The warmest May since 1833: 



it was 62°-8. 



Sandwich Manse,Orhney. — May 1. Drizzle: damp. 2. Bright: clear. 3. Clear: 



aurora. 4. Bright : rain. 5, 6. Rain : cloudy. 7. Fine : rain. 8. Cloudy. 



9. Clear: cloudy. 10. Clear: thunder and hail. 11. Bright : drops. 12. Bright: 



cloudy. 13,14. Bright : fog. 15. Bright : cloudy. 1 6. Bright : clear. 17. Rain. 



18. Fog: cloudy. 19 — 21. Damp : cloudy. 22. Rain : damp. 23. Showers : 

 bright : cloudy. 24. Showers : clear. 25. Rain : cloudy. 26. Showers. 27, 28. 

 Showers : cloudy. 29. Cloudy. 30. Rain : cloudy. 31. Cloudy : fine. 



Applegarlh Manse, Dumfries-shire. — May 1. Dropping day. 2. Fair and fine. 

 3. Fair and very fine. 4. Rain all day. 5. Heavy showers. 6. Showers. 

 7, 8. Fair and fine. 9. Fair and fine: a few drops p.m. 10. Heavy rain during 

 the night. 11. Fair and fine. 12. Slight shower : growing weather. 13—16. 

 Fair and fine. 17. Showery morning: cleared. 18. Showery all day. 19. Rain 

 r.M. 20. Rain during the night : cleared. 21. Showers : thunder. 22. Drizzly 

 all day. 23 — 25. Very fine day. 26. Very fine day : droughty. 27, 28. Very 

 droughty. 29 — 31. Very warm. 



Mean temperature of the month 52°"6 



Mean temperature of May 1845 50*0 



Mean temperature of May for 23 years 51 *0 



Mean rain in May 1*96 inches, 



Mean rain in May for 18 years 1*73 „ 



