JUN 4 1904 
Rerort on the InveEstications carried on during 1903 
in connection with the LANcASHIRE SkA-FISHERIES 
Lasoratory at the University of Liverpool, and 
the Sra-Fisnh Harcuery at Piel, near Barrow. 
Drawn up by Professor W. A. Herpman, F.R.S., Honorary 
Director of ‘the Scientific Work; assisted by Mr. 
AnpReEw Scott, A.L.S., Resident Fisheries Assistant 
at Piel; and Mr. James Jonnstonr, B.Sc., Fisheries 
Assistant at the Liverpool Laboratory. 
(With plates, charts and figures in the text.) 
CONTENTS. 
1. Introduction and General Account of the Work. (W.A.H.) 1 
2. Sea-Fish Hatching ut Piel. (A.S.) - - - - = al 
3. Classes and Visitors at Piel. (A.S.) - . . - - 165 
4. Trawling Observations. (J. J.) - - - - 20 
5. Parasites found on Fishes in the Irish Sea. (A. 8.) - - 33 
6. Myxosporidia in Flat-Fish. (H. M. Woodcock) - - 46 
7. A Remarkable Parasite. (H.M. Woodcock) — - - - 68 
8. On the fecundity of the Plaice. (R. D. Lawrie) - = fe 
9. An outline of the Shrimp question. | (W. A. H.) = - 77 
10. Investigations on Pearls in Shell-Fish. (W. A. H.) - 88 
11. Sewage and Shell-Fish. (W. A. H.) - - - - - 98 
12. Syllabus of Fishermen’s Class at Piel. (J. J.) - - - 109 
13, ApPpENDIx :—Memoir on AreEniconA, the Fisherman’s 
Lug-worm, by Dr. J. H. Ashworth - - - - 129 
INTRODUCTION AND GENERAL ACCOUNT 
OF THE WORK. 
Tue work of the past year has been chiefly :— 
(1) The hatching operations and other similar work 
carried out at Piel by Mr. Andrew Scott; 
(2) Laboratory investigations on fish and on their 
parasites and diseased conditions, by Mr. James Johnstone> 
at the University of Liverpool ; 
(5) Practical Laboratory Classes for Fishermen and 
for school teachers, conducted by Mr. Johnstone and Mr. 
Scott, at Piel; 
(4) Observations at sea on board our Fisheries 
Steamer “ John Fell.” 
