Limnogram . Al1 emograih . 
458 Proceedings of the Royal Society of Edinburgh, [Sess. 
passages of the maximum could be timed, and the direction and velocity 
of propagation of the disturbance are given in the table on p. 454. 
The microbaroPTams of this disturbance at Ardtrostan and Killin are 
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STATOSCOPE, ARDTPOiTAN 
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Fig. to 
given in fig. 10, and also a statoscope trace which we had the good fortune 
to take just at the right time.* In the same figure are shown the 
* A comparison of the traces of the microbarograph and statoscope is interesting, as it 
ghows what proportion of the drop in the microbarogram is real and not merely apparent, 
as suggested by fig. 6 above. The statoscope, of course, shows no false depression, as it was 
not worked with a leak. 
