Meteorological Observations. 359 



in a cyst. The cysts are numerous, white, oval in shape, of a gritty 

 nature, and between the thirtieth and fortieth of an inch in length. 

 The Entozoon he supposes to be the Trichina spiralis, heretofore 

 considered as peculiar to the human species. He could perceive no 

 distinction between it and the specimens of T. spiralis which he had 

 met with in several human subjects in the dissecting-rooms, where 

 it had also been observed by others, since the attention of the 

 scientific public had been directed to it by Mr. Hilton and Professor 

 Owen. 



METEOROLOGICAL OBSERVATIONS FOR MARCH 1847- 



Cldswick, — March 1. — 3. Cloudy. 4. Fine: cloudy. 5,6. Cloudy. 7. Slight 

 showers: uniformly overcast: clear. 8. Small rain : cloudy. 9. Cloudy. 10. 

 Hazy: severe frost at night. 11. Slight haze: cloudy: frosty. 12. Clear. 

 13. Cloudy. 14 — 18. Clear, with bright sun. 19. Clear: cloudy. 20,21. Cloudy: 

 clear. 22. Hazy. 23, 24. Cloudy. 25. Foggy : clear : cloudy. 26. Slight 

 haze: fine. 27. Foggy: fine. 28. Uniformly overcast : rain. 29. Very clear : 

 cloudy: frosty. 30. Clear : cloudy : clear and frosty. 31. Frosty : cloudy. 



Mean temperature of the month 40°*14 



Mean temperature of March 1846 43 '43 



Mean temperature of March for the last twenty years... 42 "91 

 Average amount of rain in March 1*36 inch, 



Boston. — March 1 — 5. Cloudy. 6. Fine. 7. Fine: rain early a.m. : rain p.m. 



8. Cloudy. 9. Fine: snow a.m. and p.m. 10. Cloudy: hail and snow p.m. 

 11 — 13. Fine. 14. Cloudy. 15 — 18. Fine. 19. Fine : a luminous appearance 

 of an extraordinary nature seen in the sky 9 p.m. 20, 21. Cloudy. 22. Fine. 



23. Fine : rain p.m. 24, 25. Fine. 26, 27. Cloudy. 28. Cloudy : rain a.m. and 

 P.M. 29. Fine : thick ice this morning : hail a.m. : rain p.m. 30. Fine : hail 

 p.m. 31. Fine. 



Sandwick Manse ^ Orkney. — March 1. Cloudy: clear. 2. Bright : clear. 3. 

 Showers : clear. 4, 5. Cloudy. 6. Showers : cloudy. 7. Damp : cloudy. 8, 

 Showers : snow-showers. 9. Snow-showers. 10. Snow : cloudy. 11. Showers: 

 sleet-showers. 12. Showers. 13. Cloudy : showers. 14. Bright : cloudy. 15, 

 16. Cloudy. 17, 18. Bright: cloudy. 19, 20. Bright: clear: aurora. 21. 

 Bright: clear. 22. Bright: large halo. 23. Damp: cloudy. 24. Damp. 

 25. Cloudy. 26. Damp : cloudy. 27. Cloudy. 28. Hail-showers : sleet- showers. 

 29. Shower: clear. 30, 31. Snow-shower. 



Applegarth Manse, Dumfries -shire. — March 1. Thaw: slight rain. 2. Slight 

 frost : very mild. 3. No frost : gray day. 4. Frost, slight. 5. No frost : clear 

 and fine. 6. No frost : dull and cloudy. 7. No frost. 8, Slight frost : clear. 



9. Frost, hard. 10. Frost, hard : sprinkling of snow. 11. Frost: sprinkling 

 of rain P.M. 12. Frost again. 13. Fair and moderate weather. 14. Fair, but 

 threatening: change. 15. Fair still, but cloudy. 16. Fair: rain p.m. 17. Rain 

 all day. 18. Very fine: fair. 19. Very fine. 20. Rain: cleared p.m. 21. 

 Heavy showers. 22. Fine : a few drops of rain. 23. Rain a.m. : thunder p.m. 



24. Frosty; fine. 25. Slight frost. 26. Rain. 27. Very fine : rain a.m. 28. 

 Clear and cold : slight snow. 29. Fair : cold : slight frost. 30. Fair : slight frost. 

 31. Slight snow : hail : frost. 



Mean temperature of the month 42°-5 



Mean temperature of March 1846 42 '2 



Mean temperature of March for 25 years 39 '1 



Mean rain in March for 20 years 2*35 inches. 



