CONTENTS. iij 



Bischof, of Bonn. Communicated by the Au- 



thor > 378 



XVII. Remarks on the Present State of our Knowledge re- 

 lative to Shooting Stars, and on the Determina- 

 tion of Differences of Longitude from Observa- 

 tions of those Meteors. By Mr Galloway, . 386 

 Earlier Opinions.— Chladni's Views.— Observations by 

 Brandes and Benzenberg.— Quetelet's Observations.— 

 Wartmann's Observations.— Deductions from the above 

 Observations.— Epochs of Kecurrence of Falling Stars.— 

 Theories regarding the Origin and Phenomena of Shoot- 

 ing Stars.— Attempts to deduce diflerences of Longitude 

 from the Observation of Falling Stars. 



XVIII. On the Living Representatives of the Microscopic 

 Animals of the Chalk- Formation. By M. Ehren- 



BERG > 396 



I. Infusoria of Mexico and Pern, . . .396 



Diagnosis of New American forms, . . 400 



II. Microscopic Animals of the North Sea, . .401 



XIX. Notice regarding a cheap and easily used Camera 

 Lucida, applicable to the Delineation of Flowers 

 and other small objects. By Sir John Robison, 

 K.H., F.R.S.E., M.S. A. Communicated by the 

 Society of Arts for Scotland, . . . 402 



XX. Observations on Terra del Fuego, . . . 404 

 Species of Fungus used as a staple Article of Food.— 

 Forests.— Zoology.— Aquatic Forests of the Southern 

 Hemisphere. 



XXI. Dr Boue's Researches in Geography, Natural His- 

 tory, &c. in the European Provinces of Turkey, 409 

 A Brief Abstract of Dr Bout's "Work on Turkey, . 411 



XXII. Appendix to Dr Richardson's Observations on 



Solar Radiation, ... 419 



XXIII. Mean state of the Barometer and Thermometer at 



Canaan Cottage, near Edinburgh. By A. Adie, 

 Esc l-' '421 



XXIV. Lord Grey's Meteorological Table for 1840, . 422 

 XXV. Abstract of Meteorological Register for the year 



1840, kept at Inveresk near Musselburgh. Com- 

 municated by Admiral Sir David Milne, . 423 



