222 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



nurseries. Statistics of actual hauls are given on 

 the card alongside. 



9. Model of improved Otter trawl net boards, lately 

 invented and patented by Messrs. Eichard Cowell 

 and E. W. Mason of Fleetwood. 



10. Model of shrimp hose-net, as used at Ince in 



Lancashire. 



11. Model of shrimp push-net used in this district. 



12. Models of craams, jumbos, rakes, and other instru- 



ments used for taking shell-fish (cockles and 

 mussels) in our district. 



13. Eiddle (on one of the tables) to regula/te the size of 



cockles collected. 



14. Complete set of the testing gauges for sizes of 



meshes and of shell-fish, used by the fishery 

 officers in enforcing the bye-laws of the Com- 

 mittee. 



15. Facsimiles of the complete set of standard gauges 



as used in court in cases of prosecution. 



16. Instruments used on board the fishery steamer 



''John Fell" for obtaining samples of water 

 and for ascertaining the temperature at any 

 required depth below the surface. 



17. Set of Kiel hydrometers and thermometer used 



in taking the physical observations at the time 

 of each experimental haul (in side case). 



18. Badges, compass, and telescope as used by fishery 



officers in execution of their duties. 



