Observers' Field Reports 



201 



It was also desired to connect that series with the present work by again reoccupying 

 a number of their stations. After carrying out these plans, and after reoccupying the 

 station at Colon, Uruguay, I proceeded to Brazil and made intercomparisons with 

 standard instruments of the National Magnetic Observatory at Vassouras, near Rio 

 de Janeiro. 



After completing work at Vassouras, I secured passage on the Vasari, sailing from 

 Rio de Janeiro October 8 to Hampton Roads, and reported at Washington October 28. 



Table 33 gives list of stations occupied, with dates and geographic positions; for 

 magnetic data, see Table of Results. 



Table 33. 



No. 



3 



4 



5 



6 



7 



8 



9 



10 



11 



12 



13 



14 



15 



16 



17 



18 



19 



20 



21 



22 



23 



24 



25 



Name 1 



Santiago, A 



Puerto Monti 



Punta Arenas 2 



Ultima Esperanza 



Rio Gallegos 2 



Santa Cruz 2 



San Julian 



Mata Grande 



Puerto Deseado 2 



Colonia Las Heras 



Las Mesetas 



Parada Kilometro 163 



Comodoro Rivadavia 2 



Puerto Madryn 2 



Dolavon 



Mercedes 1 



Bahia Blanco, 1 



Zapala 2 



Cipolletti 2 



Patagones 2 



Huahuel Niyeu 



Valcheta 2 



San Antonio 2 



Colon 



Vassouras, A, B, C, E, F, G 



Date 



Mar. 

 Apr. 



May 

 June 



July 

 Aug. 



1919 

 24 

 28-29 



8, 14-17 

 10 

 22 

 26 



1. 3 

 18, 20 

 28- June 1 



6 



8-9 

 11 

 15 

 20 



23-24 



25, Sep. 2-3 

 31 



4 



6-8 

 15 

 20 

 22 

 24 



Sep. 9 



23-26 



Lat. South 



33 

 41 

 53 

 51 

 51 

 50 

 49 

 48 

 47 

 46 

 46 

 45 

 45 

 42 

 43 

 34 

 38 

 38 

 38 

 40 

 41 

 40 

 40 

 34 

 22 



26.7 



29.3 



10.4 



41.1 



36 5 



00.9 



15.1 



50.8 



44.6 



43 



13 



47.3 



51.0 



45.8 



18.1 



40.3 



46.7 



55.2 



56.3 



47.7 



19.4 



41 



43.5 



4S.3 



24.0 



Long. East 



289 18 



287 04 



289 08 

 287 31 



290 50 



291 30 



292 22 

 292 27 

 294 05 

 291 09 



290 27 



291 14 



292 31 

 294 58 



294 17 

 300 33 

 297 44 



289 56 



292 00 

 297 01 



290 28 



293 51 



295 06 

 303 46 

 316 21 



1 The stations are in the following countries: Nos. 1 to 4, Chile; Nos. 5 to 23, Argentina; 

 No. 24, Uruguay; No. 25, Brazil. 



2 Point previously occupied here by the Argentine Meteorological Office. 



The time between sailing from New York and arrival at Norfolk, Virginia, was 8 

 months. The field time counted from arrival at Valparaiso, Chile, to sailing from Rio 

 de Janeiro, Brazil, was about 6 1 2 months, which gives an average of about 8 days per 

 station, field time, including intercomparisons at Vassouras, Brazil. The total distance 

 traveled was about 19,000 miles, of which about 13,500 was by steamer, 4,000 by train, 

 and 1,500 by automobile. The expense, including passage to the field and return, was 

 about $120 for each station. 



In general, Patagonia is not subject to great local magnetic disturbances, but the 

 soil everywhere is somewhat magnetic. 



Valuable assistance was rendered by the Argentine Meteorological Office, the Bra- 

 zilian Observatory officials, also by Mr. Frank Potter of San Julian, Argentina, and Mr. 

 Charles of Las Mesetas, Argentina. Throughout the whole trip government officials 

 and private individuals as well were ready with such aid as they could give to promote 

 the success of the work. 



