104 Scientific Intelligence. 
the Colonial magnetic observatories. These were sent apt. Maguire 
to the Admiralty, and were in due course transmitted to General Sabine, 
by whom they were subjected to the same processes of reduction as those 
made in the Colonial observatories. : 
The author then exhibited to the Section six long rolls, containing the 
results of this discussion, giving the reduced observations at each of the 
hours of the twenty-four. A sufficient body of the larger disturbances 
having been separated from the rest, it was found at Point Barrow as 
elsewhere, wherever similar investigations had been made, that in regard 
frequency of their occurrence, and the average amounts of easterly 
