148 



SEASON 1874-75. 



My experimental apparatus was now complete, and the waste 

 was skilfully led through the floor. I flattered myself all was 

 right. The slate trays were water-tight, so was the slate trough, 

 and I never dreamed of any trouble with the water. I was 



PIG. 112 scale &. 



wrong ; the slate trays and trough condensed so much moisture 

 from the atmosphere that they dripped continually. This, of 

 course, was worse on cold nights. The house was warmed with 

 hot air, and the water was often little above freezing-point. I 

 (being a married man) had to pay some attention to the lares 

 et penates. They stood it for one short season ; the amateur 



