TABLE H 7. Investigation of the problem of a lunar tide in Lake Michigan, showing the quarter-hourly co-ordinates of altitude of the surface of Lake Michigan, observed during the twenty-six spring tides mentioned in the text, between January 3 and June 30, 1859. TIME PRECEDING THE MOON'S TRANSIT AND READINGS OF TIDE-GAUGE. U.-4th, 00h. 33m. L.-4th, 12 57 U.-18th, 12 30 ........ 3.184 3.152 3.124 3.148 3.180 3.184 3.200 3.211 3.210 3.160 3.122 3.134 3.170 |