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, .... 



The Food of the Halibut, . 



Diseases of Fishes, .... 



Abnormal and Diseased Conditions of Fishes, 

 Parasites of Fishes, .... 



9 



9 



10 



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 Laboratory, 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, M.A., 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 GMmcera 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., D.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 Himaiitolophus rheinhardti, 

 and Chtpea 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 Larvae of the Angler (Lophius piscatorius), . 46 

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

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



The Eggs of the Tusk (i^rosTO ti/s 6roswe), . . .50 



