Meteorological Observations. 79 



spond with that of salicine, and it must be formed by the union of 

 two groups of atoms, with the separation of 2 equivs. of water: — 

 C«a H 24 O 12 + C 12 H'°- O 12 = O H" O 22 + 2HO. 

 Phillygenine. Grape-sugar. Anhydrous phillyrine. 



This equation is quite analogous to that which expresses the con 

 stitution of salicine : — 



C'4 H" O 4 + C 12 H 12 O 12 = C 26 H' s O 14 -f- 2HO. 



Saligenine. Grape-sugar. Salicine. 



It is remarkable that phillygenine is polymeric with saligenine, 

 for the formula of saligenine tripled gives exactly that of philly- 

 genine : — - 



3C' 4 H» 0> = O 2 H 2 ' O 12 . 

 Saligenine. Phillygenine. 



The action of chlorine and bromine on phillyrine is entirely analo- 

 gous with their action on salicine. 



The author is engaged in the study of these bodies. — Ann. der 

 Chem. unci Pharm., vol. xcii. p. 109. 



METEOROLOGICAL OBSERVATIONS FOR NOV. 1854. 



Chiswick. — November 1. Dense fog: very fine. 2. Foggy: hazy: very fine. 

 3. Fine : clear. 4. Overcast : fine. 5. Cloudy. G. Clear'and very fine. 7. Foggy : 

 cloudy. 8. Overcast : fine. 9. Clear and cold i sharp frost : rain. 10. Fine, but 

 cold : rain. 11. Slight rain : cloudy: fine. 12. Fine : frosty at night. 13. Foggy : 

 fine. 14. Densely clouded : heavy rain. 15. Heavy rain : fine : rain. 16. Rain: 

 foggy at night. 17. Foggy: rain: overcast. 18. Densely overcast and windy. 

 19. Overcast : clear and cold. 20. Cloudy: clear and cold : fine. 21. Overcast. 

 22. Clear : densely clouded : clear. 23. Fine : cloudy : sharp frost. 24, 25. 

 Cloudy and cold. 26. Clear: overcast. 27. Foggy. 28. Overcast: rain. 29. 

 Cloudy and fine. 30. Clear : rain at night. 



Mean temperature of the month A — 39° - 35 



Mean temperature of Nov. 1853 40 "14 



Mean temperature of Nov. for the last twenty-eight years ... 43 '07 



Average amount of rain in Nov 2-38 inches. 



Boston. — Nov. 1. Fine. 2. Cloudy. 3. Fine. 4. Fine : rain p.m. 5. Cloudy. 

 C, 7. Fine. 8. Cloudy. 9. Fine : snow and rain a.m. and p.m. 10. Fine : rain p.m. 

 11. Fine. 12. Fine: rain p.m. 13. Cloudy. 14. Cloudy: rain a.m. 15, 16. 

 Rain a.m. and p.m. 17. Rain a.m. 18. Cloudy : rain p.m. 19. Fine : rain a.m. 

 and p.m. 20. Cloudy. 21. Cloudy: rain a.m. and p.m. 22,23. Cloudy. 24, 

 25. Cloudy : rain a.m. and p.m. 26, 27. Fine. 28. Cloudy : rain p.m. 29. Fine 

 rain a.m. 30. Cloudy. 



Sandwick Manse, Orkney. — Nov. 1. Showers a.m. : cloudy p.m. 2. Rain a.m : 

 clear p.m. 3. Bright a.m. i showers p.m. 4. Cloudy a.m. : rain p.m. 5. Cloudy 

 a.m. and p.m. 6. Cloudy a.m.: showers p.m. 7. Showers a.m. and p.m. 8. 

 Showers a.m. : snow-showers p.m. 9. Snow-showers a.m. : sleet-showers p.m. 

 10, 11. Cloudy a.m. : clear p.m. 12, 13. Cloudy a.m. and p.m. 14. Cloudy a.m. : 

 cloudy, drops p.m. 15. Showers a.m. and p.m. 16. Showers a.m : rain p.m. 

 17. Drizzle a.m. : damp p.m. 18. Fine, cloudy a.m. : showers p.m. 19. Fine, 

 cloudy a.m. : clear p.m. 20. Damp a.m. : showers p.m. 21. Showers a.m. and 

 P.m. 22. Rain a.m. : showers, aurora p.m. 23. Clear, frost a.m. : snow-showers 

 frost p.m. 24. Snow a.m. and p.m. 25. Snow, thaw a.m. : thaw, rain p.m. 26. 

 Fog a.m. * cloudy p.m. 27. Cloudy a.m. : showers, sleet p.m. 28. Showers a.m. 

 and p.m. 29. Showers a.m. : sleet-showers p.m . 30. Clear a.m. : slect-showers 



P.M. 



Mean temperature of Nov. for twenty-seven previous years . 42°-67 



Mca i temperature of this month 42-05 



Mean temperature of Nov. 1853 14 "87 



Average quantity of rain iu Nov. for thirteen previous years 4 '25 inches. 



