640 



THE POPULAR SCIENCE MONTHLY. 



CURRENT ON WESTERN PASSAGES, 



via latitude 3, longitude 59. {Track No. 1.) 



VOYAGE. 



13 

 20 

 21 

 22 



28 

 29 

 30 

 36 

 3V 

 38 

 44 

 45 

 46 

 47 

 63 

 54 

 55 

 62 



Month. 



July 



April 



May and June . . . 



July 



March 



May 



July 



March and April . 



May 



June and July . . . 



March 



April 



May and June. 



July 



March , 



May 



June 



April 



18 passages. 

 Difference . . 



Average per passage. 



Distance. 



Observed. 



Miles. 

 2,945 

 2,950 

 2,935 



2,902 

 2,913 

 2,915 

 2,908 

 2,920 

 2,925 

 2,918 

 2917 

 2,913 

 2,919 

 2,912 

 2,912 

 2,915 

 2,917 

 2,907 



52,543 



Account. 



Miles. 

 3,071 



2,942 

 3,010 

 2,948 

 2,901 

 2,867 

 . 2,948 

 2,920 

 2,848 

 2,935 

 2,939 

 2,925 

 2,909 

 2,967 

 2,879 

 2,904 

 3,015 

 2,977 



52,905 

 362 



20 



CURRENT. 



East. 



126 



75 

 46 



40 



17 

 22 



12 



55 



98 

 70 



561 

 easterly 



"West. 



12 

 48 



10 



33 

 11 



199 



VOYAGE. 



56 

 63 

 64 

 65 



71 

 72 

 73 



74 



75 



CURRENT ON WESTERN PASSAGES, 

 via Southern Route. ( Tracks JVos. Jj. and 5.) 



Month. 



July 



May 



June 



July and August. 

 March and April. 



May 



June 



July. 



August , 



9 passages. 

 Difference. 



Average for passage. 



Distance. 



Observed. 



Miles. 



3,019 

 3,023 

 3,020 

 3,011 

 3,016 

 3,024 

 3,026 

 3,026 

 3,026 



27,191 



Account. 



Miles. 



3,015 

 2,973 

 3,068 

 3,046 

 3,028 

 3,009 

 3,056 

 3,056 

 3,027 



27,27S 

 87 



10 



Current. 



East. 



48 

 35 

 12 



30 

 30 



1 



156 

 easterly. 



West. 



4 

 50 



15 



69 



As long as our navigation laws of the last century continue unre- 

 pealed, probably the facts contained in the above tables will be of little 

 interest to steamship-owners in the United States ; but underwriters 

 and shippers are certainly concerned, as to the proportion of steamers 

 in the North Atlantic trade that escape from or meet with detention, 



