< I minute > 
PLaTE 7A.—Portion of Record at Pulkowa, September 18, rgr0, showing 
microseismic movement 
ROYAL 
{art Sin ae ae Crock ry wu Vic TORIA 
HIGH WATER Ww. Yann 
On. 50" ae ee Loe Crup 
ee om, ana RYDE, 1.W. 
'Oll pos if Yo J. MILNE 
APR 2 APR | 
settee meine temic encarta ae 
PLaTE 78.—Specimen Record (reduced) showing Tilt produced by Tidal loading. 
Original scale r mm = o/'"'17 Tilt, and ro ft. Tide gives 5 mm. deflexion. 
