CONTENTS. 



PAGE 



General Statement, ....... 5 



The Hatching of Plaice, ...... 6 



Investigations on the Herring Fishery of the Firth of Clyde, . 7 

 The Influence of Temperature on the Development of the Eggs of 



the Herring, . . . . . . .8 



The Food of the Halibut, ...... 9 



Diseases of Fishes, . . . . ■ . .9 



Abnormal and Diseased Conditions of Fishes, . . .10 



Parasites of Fishes, ....... 10 



SCIENTIFIC REPORTS. 



I. Report on Larval and Later Stages of Certain Decapod Crustacea 

 (with Five Plates). By H. Chas. Williamson, M.A., D.Sc, 

 F.R.S.E., Marine Laboratoiy, Aberdeen. 

 Issued separately as Stationery Office Publication, price 2s. 3d. 



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

 Nigg, Aberdeen, in 1909. By Dr. T. Wemyss Fulton, F.R.S.E., 

 Scientific Superintendent, . . . . .11 



III. Experiment in Retarding the Development of the Eggs of the 



Herring. By H. Chas. Williamson, MA., D.Sc, F.R.S.E., 

 Marine Laboratory, Aberdeen. (Plate I.) . .16 



IV. On the Food of the Halibut, with Notes on the Food of Scorpana, 



Phycis Blennoides, the Garpike, and Ghimozra monstrosa. By 

 Thomas Scott, LL.D., F.L.S., .... 24 



V. Bacteriological Investigation as to the Cause of an Outbreak of 

 Disease amongst the Fish at the Marine Laboratory, Bay of 

 Nigg, Aberdeen. By A. G. Anderson, M.D., P.Sc, D.Ph., 

 M.A., . . ... . . . .38 



VI. — Notes on the Eggs of the Angler (Lophius piscatorius), Halibut 

 (Hippoglossus vulgaris), Conger Vulgaris, and Tusk (Brosmius 

 brosme) ; a Young Arnoglossus, sp. ; Abnormalities in 

 Lophius, Gadus, Raia ; Diseases in Gadus, Pleuronectes, 

 Onos, Zoarces ; Occurrence of Hirnantolophus rheinhardti, 

 and Clupea pilchardus ; the Effectiveness of a Seine-Trawl in 

 a Small Pond. By H. Chas. Williamson, M.A., D.Sc, 

 F.R.S E., Marine Laboratory, Aberdeen. (Plates II. -VI.) . 46 



The Eggs and Larvfe of the Angler (Lophius piscatorius), . 46 

 The Ripe Eggs of the Halibut (Hippoglossus vulgaris), . 48 

 The Eggs of the Conger (Conger vulgaris), . . 48 



The E ggs of the Tusk (Brosmius brosme), . . .50 



