Report on the Investiaations carried on during 1901 in 
connection with the lLancasaire Sra - FisHeriss 
Laporatory, at University College, Liverpool, and the 
Sea-Fisa Harcuery at Piel, near Barrow. 
Drawn up by Professor W. A. Herpman, F.R.S., Honorary 
Director of the Scientific Work ; assisted by Mr. ANDREW 
Scott, Resident Fisheries Assistant at Piel; Mr. Jamrs 
JOHNSTONE, B.Sc., Fisheries Assistant at Liverpool; and 
Mr. Frank J. Cone, of University College, Liverpool. 
With Eleven Plates. 
CONTENTS. 
1. Introduction and General Account of the Work - - 1 
2. Sea-Fish Hatching at Piel - - = - - - 14 
8. Note on the Physical and Chemical characters of our Sea 
Waters - - = - - - - = - - 20 
4. Memoir on the Common Plaice - - = - Appendix 
INTRODUCTION AND GENERAL ACCOUNT OF THE Work. 
Tue work of the past year has been chiefly :— 
(1) The hatching operations and other similar work car- 
ried out at Piel by Mr. Andrew Scott ; 
(2) Laboratory investigations by Mr. Johnstone at Liver- 
pool, chiefly this year upon the Plaice ; 
(3) Some investigations upon the chemical and physical 
characters of the sea-water of our district ; 
(4) The work of the Circulating Fisheries Exhibition ; and 
(5) The Practical Laboratory Classes for Fishermen. 
Some of these matters which can be treated shortly I 
shall remark upon here, the others will be discussed more 
fully in the separate sections that follow. 
We have aimed at having in each of these Annual 
Reports, in addition to a short account of the work of the 
