Contents. 



II. On Sea-Fish Hatching. The Loch Fyne Experiments with 

 Plaice. By Dr. T. Wemyss Fulton, Scientific Superin- 

 tendent. (Plate II.), 



Introduction, 



The Sea-Fish Hatchery of the Fishery Board, 



TJie Principles of Sea-Fish Hatching, 



Proofs of Results, 



The Acclimatisation of the Shad in the Pacific, 



Special Statistics, 



Special Investigations, . 



The Experiments with Plaice in Lochfy 



The Results, 



Discussion of Results, . 



40 



40 

 41 

 42 

 46 

 48 

 49 

 51 

 52 

 56 

 59 



III. Some Notes on Fish Parasites. 

 (Plates III. -VII.), . 



By Thomas Scott, LL.D. 



F.L.S. 

 73 



IV. Report on the Operations at the Marine Fish Hatchery, Bay of 

 Nigg, Aberdeen, in 1907. By Dr. T. Wemyss Fulton, 

 F.R.S.E., Scientific Superintendent, 



-V-j^On the Specific Characters of the Haddock {Gadus ^glefinus, 

 Linn.), Whiting (Gadus Merlangus, Linn.) ; Gadus 

 Poutassou, Risso ; Gadus Argenteus, Guichenot ; Gadus 

 Saida, Lepechin ; Gadus Ogac, Richardson ; Gadus Navaga, 

 Kolreuter ; with a Key to the Species of Gadus found in 

 Northern Waters. By H. Chas. Williamson, M.A., D.Sc 

 F.R.S.E., Marine Laboratory, Aberdeen. (Plates VIII 



xni.), 



Introduction, ..... 

 The Fishes Examined, .... 

 External Characters — Body-Dimensions, 

 Enumeration Characters, 

 Table showing the Measurements as Percentages of 



the Length of the Fish, 

 Table showing the numbers of Vertebrre, Fin-rays 



and Pyloric Cfeca in the different species. 



Key, 



The Skulls, etc., 



Diagnostic Value of certain Bones, 



The Diagnosis of Isolated Bones, 



The Rib (Pleurapophysis), 



Notes on the Species, , 



Literature,. 



Letters used in the Plates, 



Explanation of the Plates. 



93 



97 



97 

 97 

 98 

 99 



100 



105 

 111 

 120 

 123 

 123 

 124 

 125 

 130 

 131 

 132 



