(B) 



ON THE SEICHES OF LOCH EARN. 



New Limnograph at Pic-Nic Point. 



1 = 965 cm., a = 35 cm., b = 2'5 cm. 



X= -09303, log x = 2-96862, log (2ir/ x ) = 1 '82956. 



T 



r/T 



T 



cos m 



sec 





sec 





870 



•0123 



10-7 



•9970 



486 



•0220 



10-7 



•9904 



342 



•0310 



10-6 



•9811 



60 



■1344 



8-1 



•7476 



377 



(C) Sarasin Limnograph at the Binode. 



1 = 60 feet =1830 cm., a = 35 cm., 6 = lJ inch = 375 

 X = -2483, log x = T-39506, log (2ir/ x ) = 1 '40312. 



cm. 



T 



T/T 



T 



COS 1lT 



sec 





sec 





870 



•00463 



4-02 



•9996 



486 



•00828 



4-02 



•9986 



342 



•01175 



4-02 



•9973 



60 



•06351 



3-81 



•9215 



(D) Index Limnograph with 6-inch well, and 6 feet tube of J-inch, ^-inch, 



or j^-inch bore. 



1= 182 cm., « = 15 cm. 





6=1-27 cm. 



X=-1788 



b = *63 cm. 

 x = -01083 



b = -47 cm. 

 x = -003355 



T 



r/T 



T 



cos m 



r/T 



T 



cos m 



r/T 



T 



COS TIT 



sec 

 87C 

 486 

 342 

 60 



•0064 

 •0115 

 ■0163 

 •0843 



sec 



5-59 



5-58 



5-57 



5-06 



•9992 

 ■9974 

 •9948 

 •8630 



■0937 

 •1390 

 •1569 

 •2336 



sec 

 81 -B 

 67-6 

 53-7 

 14-0 



•8320 

 ■6421 

 ■5078 

 •1028 



•1808 

 •2096 

 •2213 

 •2449 



sec 



157-3 



101-8 



72-5 



14-7 



•4213 

 •2512 

 •1797 

 •0320 



TRANS. ROY. SOC. EDIN., VOL. XLV. PART II. (NO. 14). 



53 



