OF THE SAL^SWNIDJE. 67 



otherwise than harmful ; but we confess we 

 ■can gather from it no clear idea of the pro- 

 cess. He appears to have employed no 

 charcoal, and the distribution of the ova 

 *' among the moss " implies an amount of 

 contact with various substances which 

 would be prejudicial, according to all ex- 

 perience, to the delicate envelope of the 

 ovum. " The ice-house was thus packed : 

 &st, ice two feet thick was arranged along 

 the bottom. Then upon it were carefully 

 deposited a square, consisting of twenty-five 

 salmon egg boxes, each one foot cubic, and 

 four boxes at each corner of the square. 

 Upon these boxes came another stratum of 

 ice, also two feet thick; on this stratum 

 again another twenty-nine egg boxes. Ice 

 again on the top of these. All round the 

 ■sides of the ice-house was [ivere f] packed 

 slabs of ice 2 ft. 6 in. thick, so that the 

 boxes containing the ova were surrounded 

 on all sides by blocks of ice, the minimum 

 thickness being two feet. Ice was also 

 packed, in the interspaces between each 

 box, precautions being taken that they 



