CHAPTER XII. 



SEASON 1874-75 continued. 



EXPERIMENTAL WORK. 



List of Experiments. 



Experiment 1. Loch Leven eggs milted by a burn-trout male. Milt bottled six 



hours before using. 

 Experiment 2. Loch Leven eggs milted by a burn-trout male, same as No. 1, only 



males transported alive. 

 Experiment 3. Loch Leven eggs milted by a burn-trout male, same as above, only 



the male was immature, and quantity of milt small. 

 Experiment 4. Burn-trout eggs milted by a Loch Leven male. Milt bottled 



twenty hours before using. 

 Experiment 5. Loch Leven eggs milted by a burn-trout male. Eggs bottled for 



twenty hours before using. 

 Experiment 6. Loch Leven eggs milted by a Loch Leven male, pure ; eggs with 



red liquid. 



Experiment 7. Sea-trout eggs milted by a burn-trout male. Male very small. 

 Experiment 8. Loch Leven eggs milted by a sea-trout male. 

 Experiment 9. Sea-trout eggs milted by a Loch Leven male. 

 Experiment 10. Burn-trout eggs milted by a burn-trout male. Ova cut out of 



dead female. 

 Experiment 11. Burn-trout eggs milted by a sea-trout male. 



OCTOBER 1874 was the month when the first ova were laid 

 down in the hatching-house at Middlethird. The burns on 

 Sauchie could not supply a quarter of the spawners required to 

 fill the trays and boxes. I had written to Sir Graham Mont- 

 gomery, asking permission to obtain spawn from Loch Leven, 

 the quid pro quo being that I should return one -half as fry. 

 This Sir Graham agreed to ; and on October 23d I went to 

 Kinross by the morning train, and found 8 females and about a 

 dozen males waiting for me ; but only 4 of the females ripe. 

 I noted the unripe fish had no mark on their noses. All the 

 ripe ones had, showing they had been caught on the spawning- 

 beds and not in the lake. After the second or third glass of 

 whisky (a medicine in which most people at Kinross had at that 



