DEPARTMENT OF TERRESTRIAL MAGNETISM. 315 



resumed the work in South AustraHa. Upon Mr. Brown's arrival at 

 Hobart, an intercomparison of instruments, used by Messrs. Kidson 

 and Brown, was secured; thereafter Mr. Brown occupied 3 stations in 

 Tasmania and Fhnders Island. 



Early in March Messrs. Kidson and Brown compared dip instru- 

 ments at the Melbourne Observatory ; proceeding thence to Blackwood, 

 South Australia, an intercomparison of the instrumental outfits to be 

 used by Messrs. Kidson, Parkinson, and Brown was made. During 

 the last half of March Mr. Kidson observed at 4 stations in the 

 southeastern part of South Australia with Observers W. C. Parkinson 

 and A. L. Kennedy and instructed them in the field operations and 

 methods of the Department. Having planned the field-work of the 

 3 observers of his party (Messrs. Brown, Kennedy, and Parkinson), 

 Mr. Kidson proceeded during the first part of May to Perth, and thence 

 to Coolgardie, Western Australia, where repeat observations were made. 

 At this point he outfitted for his caravan trip to Wiluna, and thence 

 along the Canning stock route to Hall's Creek and Wyndham. He 

 observed at Wiluna on June 3, having secured 5 stations en route 

 from Coolgardie. He arrived at Hall's Creek on August 21, having 

 secured 33 stations on the trip across the desert. After reaching 

 Wyndham on September 22, Mr. Kidson proceeded along the coast to 

 Perth, where he arrived on October 3. At Perth his entire party 

 was assembled; here the computations of the field observations were 

 made and the various instrumental equipments were intercompared. 



Observer A. L. Kennedy, previously a member of the Australasian 

 Antarctic Expedition, was appointed for the balance of the year, on 

 March 16, at Adelaide, and assigned at once to Mr. Kidson's party. 

 After the trip of instruction with Mr. Kidson, referred to above, Mr. 

 Kennedy first undertook a caravan trip in the northeastern part of 

 South Australia and the southwestern part of Queensland. He went 

 by rail from Adelaide to Farina, and thence by caravan around the 

 southeast end of Lake Blanch to a point near the east boundary of 

 South AustraHa, about latitude 28? From this point he proceeded 

 north through Haddon Station into Queensland, and west to Birds- 

 ville, Queensland, thence in a generally southerly direction, through 

 South Australia, to Hergott Springs on the railway, returning to 

 Adelaide about August 1. Preparations were then made for the 

 caravan trip from Port Augusta, at the head of Spencer Gulf, north- 

 westerly to the north of Lake Gairdner, and thence directly west 

 across the Victoria Desert to Eucla, Western Australia. During both 

 of these caravan trips Mr. Kennedy secured observations at stations 

 spaced 30 to 50 miles apart. 



Observer W. C. Parkinson left Washington on February 2, via San 

 Francisco and Honolulu, to report to Mr. Kidson for duty in Western 

 Australia. He arrived at Adelaide on March 4. After the preliminary 



