160 



ROYAL SOCIETY OF CANADA 



APPENDIX. 



Water-levels in the Lepreau Bog. 



The results of the observations referred to on page 148 were tabu- 

 ated too late for insertion in their proper place, and are added here. 



On Saturda}', July 24th, 1897, a row of pits, each about eighteen 

 inches deep, was dug in the moss of the Lepreau Bog, from the flat 

 margin near A in Fig. 2 to the highest part at X No. 1 (at A, Fig. 5) 

 was hardly on the bog at all ; No. 2 was low down on the slope (near/, 

 Fig. 5) ; 3 was on the middle of the slope (half-waj^ between/ and F) ; 

 4 was near the top of the slope (at left of i^) ; 5 was well on top of the 

 raised part above the slope ; 6 was well out on the raised part ; 7 still 

 farther out; the others up to 12 were at regular intervals out to X 

 From 2 to (J the intervals were 10 yards ; 6 to 7, 20 yards ; 7 to 12, 30 

 yards. After the pits were dug, several hours were allowed to pass in 

 order that the water might attain its proper level, and then stakes four 

 to live feet long, graduated near their upper ends in centimetres above 

 and below a zero mark, were diiven into the moss of each pit to such a 

 depth that the zero mark in every case stood exactly at the surface of the 

 water. The zero mark varied from 18 to 25 cm. from the surface of the 

 moss. They were then left until Monday at 8 a.m., w^hen the first obser- 

 vation was made, and these were then continued at the times and with 

 the results stated in the following table. The figures express centimetres 

 and millimetres above and below the zero mark in each pit ; all of the 

 figures in ordinary type are below zero, while all in heavy face are above 

 zero. 



