634 



THE POPULAR SCIENCE MONTHLY 



EASTERN PASSAGES. 



13. 

 14. 



20. 

 21. 

 22. 

 23. 



45. 



46. 



47. 

 48. 



VOYAGE. 



2 passages 

 Average . . 



4 passages 



53. 

 54. 

 55. 

 56. 

 57. 



62. 



63. 

 64. 



65. 



66. 



Average 



3 passages 

 Average . . 



4 passages 

 Average . . 



June. 



July and August. 



March and April. 



May 



June 



July and August. 



April 

 May 



June. 

 July . 



4 passages 

 Average . . 



March 



April 



May 



June and July. 

 August 



5 passages 

 Average . . 



March 



April and May. 

 May and June . 



July 



August 



5 passages 

 Average . . 



