IV CONTENTS. 



PAGE 

 ZOOLOGY. 



38. On the structure of the Cranium of the Rhytina 

 Stelleri, and general remarks on the Herbivorous 

 Cetacea, or Sireniae. 39. On the White Race of the 

 Aures, (Mons Aurarius) in the Province of Constan- 

 tine, Algeria. 40. Quadrupeds and Birds peculiar 

 to Western Siberia. 41. Boring Power of Land- 

 Snails on Limestone, . . . 393-396 



ARTS. 



42. Iridescent Silver, .... 396 



MISCELLANEOUS. 



43. Progress of the Serial Works of Professor Agassiz. 

 44. Proposed introduction of the Aracacha into 

 Europe, ..... 398 



XXIII. New Publications received, .... 399 



XXIV. List of Patents granted for Scotland from 22d De- 



cember 1845 to 22d March 1846, . . 401 



Corrections and additions for Dr Davy^s Paper, in the last 

 Number of the Journal^ 



Page 46, line 1 from the top, for also of the temperature, read also the tem- 

 perature. Page 46, line 3 from bottom, for 24th, read 4th. Page 48, line 11 

 from the top, for vapour inhaled, read vapour exhaled. Page 48, line 21 from 

 the top, for was the sickness, read was there sickness. Page 50, line 5 from 

 the top, for mass of phosphates, read excess of phosphates. Page 50, line 10 

 from the top, for there constituted, read there instituted. Page 51, line 18 

 from the bottom, for suggests, read suggest. Page 53, after the table at the 

 top of the page, add the following sentence : — Whilst the observations on both 

 these occasions were made, the body was most lightly clad, and in great part 

 naked ; the skin was moist with perspiration ; there was very little evaporation, 

 the difference between a thermometer with a moist and dry bulb being only 2° ; 

 and in the last noticed instance, as well as in the first, towards the end of the 

 observations, there was a slight increase of the temperature under the tongue. 

 Page 54, line 1 from the top, for a fair average, read an average. Page 54, 

 line 3 from the top, for 97-92, read 98*70. Page 56, line 8 from the top, for 

 the moistened bulb-thermometer, read the thermometer with moistened bulb. 

 Page 57, line 7 from the bottom, the words, essentially connected with a due 

 supply of air, to be put in brackets ; the and immediately following, in line 

 6 from the bottom, to be deleted. Page 58, line 8 from the bottom, dele or. 

 Page 58, line 7 from the bottom, before timbers, insert strength of the. 



Erratum. 

 Plates I., II., and III., /or Vol. XXXIX., read Vol. XL. 



