ttoyal Physical Society. 51 



22d a considerable number were caught in the herring-nets off Queens- 

 ferry. These, of course, were very perfect, the beak not being injured, 

 as it generally was in those found on the shore (and of these he exhibited 

 a perfect specimen). The east or north-east wind was very prevalent be- 

 fore and during the first appearance of these fish ; it then veered to the 

 westward, and the fish disappeared ; and, on its again changing to the east, 

 we had their recurrence at the latter part of November, to which he had 

 just alluded ; after which they finally disappeared. Dr Parnell, appa- 

 rently, had never met with them. Vide " Essay on the Fishes of the 

 Forth," published in 1838. 



2. On the Qalactite of Harding er ; with Analysis of Scottish Natrolites. 



By M. Forster Heddle, M.D. 



After submitting six analyses of Qalactite (from the following localities 

 ■ — two from Glenfarg, red and white ; from Campsie ; two from Bishop- 

 town, white and pink; and from Glenarbuck), Dr Heddle showed that 

 this substance was merely Natrolite ; lime, in proportions from *16 up to 

 4*312, replacing a portion of the soda, giving to the mineral its charac- 

 teristic whiteness and opacity, and doubtless preventing its assuming the 

 definite form, which the pure mineral, under favourable circumstances, 

 adopts. 



Dr Heddle next submitted an analysis of a green mineral from Bow- 

 ling Quarry, Cochney, and Bishoptown, which has been sold under the 

 name of" Stellite," and which Professor R. D. Thomson considered Pec- 

 tolite ; this was shown to be also Natrolite; lime was here present, as 

 also magnesia and oxide of iron as impurities. 



The analysis of a specimen from Dumbarton Moor also showed 3*76 

 per cent, of lime, so that out of six localities, no specimen was free of 

 this base. 



The Bin above Burntisland and North Berwick were also mentioned as 

 localities of this mineral ; no analysis, however, of specimens from these 

 places was submitted. 



At Glenfarg alone in Scotland does this mineral occur distinctly crys- 

 tallized, the form being o m of Brooke and Miller. 



3. Notice of a variety of Cod, termed the "Lord Fish." By T. 



Spencer Cobbold, M.D. 



This variety consisted in a remarkable shortening of the body, arising 

 from the coalescence of a great number of the vertebrae immediately suc- 

 ceeding the bones of the head. In the present example, twenty-one were 

 united together, and the shortening thus produced had given to the animal 

 a curiously grotesque appearance. The middle dorsal fin was shortened, 

 and the lateral longitudinal line arched very suddenly over the pectoral 

 fins. Length, about 20 inches ; depth, 8 inches. It corresponded very 

 closely with the figure and description of this variety given in the second 



