NATURAL HISTORY AND PHYSIOGRAPHY OF NEW imUNSWICK. 
455 
River at heyinning of had rapids above Indian Brook. Mean of 
two measurements, 1,045 feet. 
• River two miles above Mains Brook. Mean of two measurements 
■S28 feet. 
River in the principal gorge below Mains Ledges and above Libby s 
Brook. Mean of two measurements, 566 feet. At this place the 
river has cut deeply into a great peneplain, which by direct measure- 
ment here lies from 230 to 250 feet above the river, and hence about 
800 feet above the sea. 
River just above Devils Brook. Mean of two measurements, 328 feet. 
River just above Red Stone, a single measurement, 180 feet. 
River ten miles above Red Bank. Mean of two measurements, 94 
feet. 
Sea level is reached about two miles above the junction with the 
Northwest Miramichi. 
The general physiographic significance of these results will be dis- 
cussed in later notes to be offered to the Society. I shall here refer 
•only to two points connected with the measurements themselves. 
First, my own measurements for Trowsers, Long and Milnagek Lakes 
are higher this year than last. I am convinced that those of this year 
are more accurate. My smaller aneroid, I am pleased to find, runs 
remarkably well with the new Watkin, but it lingers a little behind it 
on the changes. Moreover, I find that in previous calculations I have 
not made a sufficient allowance for air- temperature, the introduction 
of which in summer measurements always gives greater heights. I 
believe, however, that all of my earlier measurements, if absolutely a 
few feet too low, are yet correct relatively to one another. Second, 
where calculations have been made with both Fredericton and Chatham 
as bases, the heights obtained with Fredericton as the base are con- 
siderably higher than those from the Chatham base. I had a similar 
experience some years ago in comparing readings from the Fredericton 
^nd St. John stations (see this Bulletin, XVI, 63), and I then sug- 
gested that the height of 164 feet assigned to the Fredericton station 
might be somewhat too great. This appears to me to be the most 
probable explanation of the discrepancy shown by the results of this 
summer. It would be a satisfaction if the height of the Fredericton 
station could be re-determined, since, if in error, it not only vitiates 
^11 past measurements, but will continue to vitiate measurements to be 
made for many years to come. 
