THE KURRAJONG EARTHQUAKE. 87 



7. Was there any disturbance of movable objects, such as, doors, 



windows, cracking of ceilings 1 



8. Was there any disturbance of furniture, beds, tables, etc.? 



9. Was there any movement of suspended objects such as chan- 



deliers? 



10. Was there any stoppage of clocks by the shock ? 



11. Was there any overthrow of movable objects such as a fall of 



plaster, ringing of church bells? 



12. Was there any fall of chimneys or cracking of walls of 



buildings ? 



Might I suggest that the questions listed above be dictated to 

 the school children who might take them home and ask their 

 parents to furnish the answers. Any other particulars bearing 

 on the earthquake but not covered by the questions would be 

 welcomed. 



It is also desirable to find out whether any earthquake shock 

 has previously been felt in your district and to obtain as accurately 

 as possible the time of day and date of its occurrence. 



As it is quite possible that further shocks might be felt I should 

 be grateful if you would be willing to co-operate in further inves- 

 tigations by instituting inquiries immediately following any such 

 occurrence." 



The press also kindly published the above circular and 

 many replies were received from this source. The Meteor- 

 ological Bureau also very generously instituted special 

 enquiries and placed much useful information at the writer's 

 disposal. Altogether more than one hundred replies were 

 received. In a number of cases a single reply represented 

 many — even some hundreds of enquiries. 



In order to eliminate as far as possible any unconscious 

 personal bias, the letters received were each summarised 

 in a card index, one card being used for each letter. The 

 cards were then examined without reference to the geo- 



