30 



TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



took place on April 10th, when a few thousand were 

 successfully set free in the Calf Sound. On succeeding 

 days larvae were liberated at sea either to the east or the 

 west of the Calf Island, according to the weather, as 

 follows : — 



Date. 



Number of Larv 



April 11th 



.. 30,000 



„ 12th 



.. 30,000 



„ 13th 



.. 150,000 



,, 14th 



.. 130,000 



„ 16th 



.. 70,000 



,, 18th 



.. 35,000 



,, 21st 



.. 184,000 



„ 23rd 



... 44,000 



„ 27th 



.. 50,000 



„ 29th 



.. 45,000 



May 4th 



... 43,600 



6th 



7,200 



818,800 



As all the above numbers are based on minimum 

 countings and estimates, the total is almost certainly 

 greater than that shown ; and I think it is safe to conclude- 

 that we liberated about a million of healthy young plaice 

 in the open sea. We hope to deal with still larger 

 numbers next year. Our pond will accommodate a much 

 larger number of spawning fish than we had this year. 

 Our hatching boxes will hold more eggs, and we have 

 room to add, if necessary, further ranges of boxes. 



We hope, also, to make some improvement in the 

 mechanism and circulation of water, which will 'prevent 

 a certain wastage of eggs that occurred this season. 



It is evident, from questions that have been asked by 

 those who saw the hatching in progress, that some 



