24 
“Mix thoroughly, and,give from a heaping teaspoon fuj to ‘ 
a tablespponful,.according tq the .size of the animal, in the 
food.three times daily... It wjll, probably, require consider-. 
able time: for the animal to recover .somewhat of its former;; 
vigor,:and?good nutritious, food. .is to be-depended on mote 
than, medicine,” 
. t ... ^ 
iThe. following, letters from Dr. t Riley explain the parasites 
that, infests the loco.d t 
United Status Department'of Agriculture, 
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P jT "| ' > r , , . . - , I . 
‘ Division of Entomology. 
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Washington, D. C„ July 2-1,1890, - 
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Professor David O'Iirtye, 'tigricutlufal Experiment Station , ifyrf Collins , Colorado . t t fi 
Dear Sir T have your letter of July 14, and' the fruit of the “ loco weed,” . 
with the cdnt ained’ larva:. 'V , r . ’ , ' 
This i'U^dct see his to bait'weevil of the'genus Bruchuk, allied to the cppampn 
Bean aud Pea'Weevil ;' but it will, be impossible to determine the- spocies,without 
rearing the adult: 'It is very interesting matter, and I trust that you vvill send me, 
on more of these-f ruit froto time to time. . * " . > ? 
Hoping to hear from you again,.! remain 
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Yours truly, , * 
C. V. Riley, 
' ’ Entomologist 
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U. S. Department of Agriculture, 
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... Division of Entomology. 
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Washington. D. G., Deeembei 6th,-1890. 
Dr. David O'Brine, Agricultural Experiment Station, Fort Collins, Colorado. 
Dear Sir Yours of the 4th inst. has fust come to hand. X am thoroughly 
convinced that, the insects which infest the loco weed have nothing whatever-to do 
with the effect of this plant upon live stock. The loco weed has a number of in- ■ 
sect enemies in which I have been forborne yea,rs quite interested. It is a common 
thing for persons to suppose that the insects might cause the trouble rather than 
v. - > f JL f —* 
the.plant. I shall always be gtad to hear from you further and should, especially 
like to get some more, specimens of the Bruchus which you feen’t last year'. 3 y 
Yours truly, 1 ' ' • • '■ 
v 1 b ' C. V. ! Rile,V,~ - 
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Entomologist. 
V r “ 
The following table gives the ash analyses of the loco and 
larkspur : It explains itself. 
