CONTENTS. 



On the Theory of parallel Lines in Geometry . , . . 423 

 On the Autumnal Flowering of the Narcissus .... 426 

 An Account of a General Survey of the Heavens undertaken at 



the Konigsberg Observatory 427 



Some Experiments and Researches on the Saline Contetits of Sea- 

 Water, undeHaken "with a view to correct and improve its Che- 

 mical Analysis 434 



On the visible Solar and Lunar Eclipses which will happen in 



the Year 1823 . • 440 



Some Remarks on Urinary Calculi, and their Chemical Exami- 

 nation 445 



Note of some Experiments on the Vapour ofSidphuric Ether 448 



Tnie apparent Right Ascension of Dr. Maskelyne's 36 Stars 



for every Day in the Year 1823, at the Time cf passing the 



Meridian of Gree?iwich 449 



Mr. P. Taylor on the Expansive Farce of Steam at diffei'ent 

 Temperatures 452 



Notices respecting New Books . . 66, 1 35, 21 1, 3 1 9, 377, 454 

 Proceedings of Learned Societies . 67, 145, 229, 387, 459 

 Intelligeyice and Miscellaneous Articles 66, 147, 230, 321, 388, 



467 

 List of Patents 79,159,239,326,399,470 



Meteorological Tables . . . . 80,160,240,328,400,472 



PLATES. 



I. Pollen of Flowers 5(5 



II. Fossil Bones from Norfolk . . . . 13j2 



III. Pleiades 189 



IV. Amici's Sextant 301 



V. Gower'6 Life-Boat 409 



VI. Taylor's Table of Expansion of Steam 452 



THE 



