
INSECTS AND DISEASE 
this was by far a more dramatic display than anything now to be 
seen on the Isthmus. Again, the Gatun Dam is a great conception; 
but as such the recent tunneling of the Hudson and the subterranean 
honeycombing of Manhattan Island, combined with the bridging of 
the East River, impress me more. Finally, the locks at the entrance 
and outlet of the proposed Chagres Lake are imposing structures; 
but to my mind the terminal stations built, or now in process of 
building, in the heart of New York City, are more imposing. As I 
have said, all this is a mere question of degree, and time out of 
mind the world has been building roads and water-ways; moreover, 
behind this particular water-way is the Treasury of the United States. 
But when it comes to the sanitation which made all that is now going 
on at Panama humanly and humanely possible,—vanquishing pesti- 
lence and, while harnessing the Chagres, also making it innocuous to 
those working and dwelling on its banks,—this is new; and the like 
of it the world had not before seen.”’ 

