Meteorological Observations^ 399 



Thus obtained this substance is white, and possesses all the pro- 

 perties of albumen, but is not easy to pulverise it. When it is put 

 into a solution of potash in a silver vessel, the silver is blackened, 

 which shows that it contains free sulphur : it contains no free phos- 

 phorus. 



The composition of the crystalline humour [protein ?] is stated to 

 be 



Hydrogen. . . . 6'94 or 62 atoms. 



Carbon 55'89 40 



Oxygen 2M6 12 



Azote 16-54 10 



The quantity of sulphur is in the proportion of one atom to fifteen 

 atoms of protein. 



The entire crystalline humour dissolved in nitric acid, mixed with 

 a solution of nitrate of iron and precipitated by ammonia, furnishes 

 the same quantity of phosphate of lime as a hydrochloric solution of 

 the same substance. The phosphoric acid is derived from the phos- 

 phate of lime ; the substance therefore contains no free phosphorus. 



If the crystalline humour in a very dry state be put into sulphuric 

 acid, it swells, and is converted into a transparent gelatinous mass, 

 like the protein of caseum, fibrin, &c. By the addition of water it 

 contracts and yields a hard powder. 



The author concludes that the principle of the crystalline humour 

 is protein, for it possesses the same composition and atomic weight 

 as the pure protein of albumen, fibrin, caseum, &c. Journal de 

 Chim. Medicate, Aout, 1840. 



METEOROLOGICAL OBSERVATIONS FOR SEPT. 1840. 



Chiswick. Sept. 1,2. Fine. 3. Rain. 4. Cloudy : rain. 5,6. Fine. 7,8. 

 Very fine. 9. Hazy. 10 13. Very fine. 14. Hazy: heavy rain. 15. Cloudy: 

 rain at night. 16. Rain, with brisk S.W. wind: barometer exceedingly low. 

 17. Very fine: frosty at night. 18. Frosty haze : very fine. 19. Cloudy and 

 cool. 20. Fine. 21. Fine : rain. 22. Heavy rain. 23. Rain : clear and fine 

 at night. 24. Heavy showers. 25. Cold and wet. 26. Overcast : rain. 27. 

 Cloudy and fine. 28. Heavy rain. 29, 30. Clear and fine. 



Boston. Sept. 1. Cloudy. 2. Fine. 3. Rain: rain early A.M. 4 6. Fine. 

 7. Cloudy. 8. Fine. 9. Cloudy: rain early A.M. 10. Fine: rain early A.M. 

 11, 12. Fine. 13. Fine: rain P.M. 14. Cloudy. 15. Fine. 16. Fine: rain 

 early A.M. : rain P.M. ' 17. Cloudy: rain early A.M. 18. Fine: rain P.M. 19, 

 20. Cloudy. 21. Cloudy: rain P.M. 22. Stormy and rain: rain A.M. 23. 

 Rain : rain early A.M. 24. Fine : rain early A.M. 25. Rain : rain early A.M. : 

 rain A.M. 26. Fine: rain P.M. 27. Fine. 28. Cloudy. 29. Fine: rain P.M. 

 30. Fine. 



Applegarlh Manse, Dumfries-shire. Sept. 1. Fine harvest day: air electric. 

 2. Rain from midday. 3, 4. Showery. 5. Fine and clear. 6. Fine but cloudy. 

 7. Fine : a few drops of rain. 8. Cloudy A.M. : rain P.M. 9. Wet: cleared up: 

 wet again. 10, 11. Occasional heavy showers. 12. Moist, but moderate. 13. 

 The same : one shower. 14. Fine and clear. 15. Cold and showery. 16. Rain 

 A.M. 17,18. Very fine. 19. Fine A.M. : moist P.M. 20. Fine A.M. 21. Fine 

 A.M. : showery. 22. Fine and dry : thunder A.M. 23. Rain. 24. Fine and 

 fair. 2527. Very wet. 28, 29. Moist. 30. Showery. 



Sun shone out 28 days. Rain fell 21 days. Thunder 1 day. 



