688 



INDEX. 



tlie Common and Small-headed Narwal, 141. — Ne- 

 cessity of adding another Species to the Genus Mon- 

 odon of Linnaeus, 142. — Propriety of retaining the 

 Linnaean name of the Genus, 143.-— Supposed deri- 

 vation of the word Narwal, 144. — Error of La Ce- 

 pede regarding the Country where his Small-headed 

 Narwal was captured, 147. 

 Neill, Patrick, his account of a Fin-whale stranded near 

 Alloa, i. 201. — His list of Fishes found in the Frith 

 of Forth, and Kivers and Lakes near Edinburgh, 

 with remarks, 526. 



o 



Ocean, German, upon the general Bed of, by Robert 



Stevenson, - ii. 464 



Ochil Hills, outlines of the Mineralogy of, by Charles 



Mackenzie, - 1 



QEstrideous Insects, Dr Leach on the arrangement of, 

 ii. 567. — -OEstrus, ib. — Gasterophilus, 568. 



Ogilby, Dr, on the Transition Greenstone of Fassney, 

 i. 126. — On the Veins that occur in the Newest 

 Floetz-Trap Formation of East Lothian, 469. 



Olefiant Gas, Dr Thomson on - i. 514 



Ophidium imberbe, observations on, and description of, 

 by George Montagu, i. 95. — Not identified by mo- 

 dern authors, ib. — Distinct from Ophidium barba- 

 turn, 97. 



Ore, Iron, of the Campsie Hills, - ii. SI 



Magnetic, from Greenland, Dr Thomson's 



Analysis of, - 51 



— Lead, description and Analysis of a new Species 



from India, by Dr Thomson, - 252 



