Art* I (b)* Tho following should perhaps be added to the (b) 
seotion of Ajrt* Is 
• * * and, further, that the Saithsonian, if it so desires, may- 
build a dam on the lower reaches of the stream enterii^ Freshwater Bay, 
Chatham Island, for the purpose of impounding water, whioh is to be drawn 
off by a pipe or hose line extending to a properly marked, anchored buoy off 
shore for tlie purposes of taking water* 
