Meteorological Observations, 87 



2. I choose bibulous paper to be coloured. 



3. Before drying the paper, I impregnate it with a solution of 

 gelatine. — Comptes Rendus, Dec. 10, 1855, p. 1046. 



ON A NEW SEISMOMETER. BY M. KREIL, DIRECTOR OF THE 

 IMPERIAL METEOROLOGICAL INSTITUTE, VIENNA. 



The new seismometer (an instrument for determining the data con- 

 cerning earthquakes), invented by M. Kreil, is a pendulum oscilla- 

 ting in every direction, but unable to turn round on its point of 

 suspension, and bearing at its extremity a cylinder, which, by means 

 of mechanism within it, turns on its vertical axis once in twenty-four 

 hours. Next to the pendulum stands a rod bearing a narrow elastic 

 arm, which slightly presses the extremity of a lead-pencil against 

 the surface of the cylinder. As long as the pendulum is quiet, the 

 pencil traces an uninterrupted line on the surface of the cylinder ; 

 but as soon as it oscillates, this line becomes interrupted and irre- 

 gular, and these in-egularities serve to indicate the time of the com- 

 mencement of an earthquake, together with its direction and inten- 

 sity. — Proceed. Imp. Acad. Sciences, Vienna, March 8, 1855. 



METEOROLOGICAL OBSERVATIONS FOR NOVEMBER 1855. * 



Chiswick. — November 1. Cloudy : frosty at night. 2. Overcast and cold : heavy 

 rain. 3. Showery. 4. Fine. 5. Clear : dense fog : very fine : rain. 6. Fine. 

 7. Cloudy. 8. Constant heavy rain. 9. Slight fog : fine. 10. Foggy : very fine : 

 foggy at night. 11. Very fine : cloudy. 12. Hazy. 13. Overcast. 14. Fine: 

 frosty at night. 15. Frosty and foggy : very fine : dense fog at night. 16. Dense 

 fog. 17. Fine: cloudy: rain. 18. Hazy : cloudy : rain. 19. Rain. 20. Drizzly: 

 fine. 21. Overcast : rain. 22. Drizzly : overcast : fine. 23. Cloudy. 24. Cloudy 

 and cold : showery. 25. Cloudy : clear : sharp frost at night. 26. Very fine. 

 27. Overcast : slight rain. 28. Overcast : cloudy : lunar rainbow at 10 p.m. 29. 

 Overcast : cloudy. 30. Overcast : very fine. 



Mean temperature of the month 40°"84 



Mean temperature of Nov. 1854 39*35 



Mean temperature of Nov. for the last twenty-nine years ... 42 '95 

 Average amount of rain in Nov 2'347 inches. 



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

 rain A.M. 5. Cloudy: rain p.m. 6. Rain a.m. 7. Cloudy. 8. Cloudy: rain 

 A.M.andp.M. 9. Fine. 10. Cloudy. 11. Fine. 12— 15. Cloudy. 16, 17. Fine. 

 18, 19. Cloudy : rain p.m. 20. Cloudv. 21. Cloudy : rain p.m. 22, 23. Cloudy : 

 rain a.m. and p.m. 24. Cloudy : rain" p.m. 25. Cloudy. 26. Fine. 27. Cloudy : 

 rain p.m. 28. Cloudy : rain a.m. and p.m. 29. Cloudy : rain p.m. 30. Cloudy. 



* The observations by the Rev. C. Clouston of Sandwich Manse, Orkney, 

 have not been i>eceived. 



