Bf-108 
July, iinfi. 
.Vo. 
UNITED STATES DEPARTMENT OF AGRICULTURE 
BUREAU OF BIOLOGICAL SURVEY 
EXPENDITURE AUTHORIZATION 
Washington, D. C., October 1, 191G< 
Alex .etrspra. 
As al st ant . S iologia 
Your letter of authorization lio, 70-31., os amended. payable from 
the appropriation "General hxpensea , Bureau of Biologionl .urvoy, 1010 ' 
(Food Habits of Biwla and liacnals ) , ie hereby further anendod so aa to 
authorise you to Investigate the mortality among waterfowl about Klamath 
Lake, Oregon. liio amount which may bo emended under the above named 
appropriation is not hereby increased. 
Your permanent headquarters anil he ,,'e.cw ilngtOn, ] 
/ “S ; H 
L ■ y// . - v . y : « 
* *d <2erk >. “ 
173 
Acting 
Chwfi Biological Survey. 
