CONTENTS. 



Page 

 Art. I. Remarks on the Fwrnation of Alluvial Deposites. By 

 James Yates, M. A. F. L. S. and F. G. S. Com- 

 municated by the Author, _ - - 1 

 I. On the Preliminary Processes of Disintegration, not 

 immediately dependent upon the Action of Run- 

 ning Water, by which Materials are furnished for 

 the Formation of Alluvium, - - - 2 

 II. On the Distribution of Debris by Streams flowing 



over inclined or level surfaces, . - 8 



III. Of Detritus conveyed by Running into Standing 



Water, 30 



IV. The case of a Stream which meets a Stream flowing 



in another direction, - - - - 39 



II. Observations on the History and Progress of Com- 

 parative Anatomy. By David Craigie, M. D. 

 8cc. (Continued from former Volume, p. 307-), — 

 Sect. III. Early Zootomical Authors to Eusta- 

 chius. 1501-1576, - - - .42 



III. Thoughts regarding the Influence of Rocks upon 



Native Vegetables. By Alexander Murray, 

 M. D. & A. M. Aberdeen. Communicated by the 

 Author, ----- 5€ 



IV. An Account of some Experiments made to determine 



the Thermal Expansion of Marble. By Mr John 

 Dunn and Mr Edward Sang. Communicated 

 by the Authors, . . . - 66 



