214 IOWA DEPARTMENT OF AGRICULTURE. 



1. Are any of the following named weeds, or other weeds that are 



dlflBcult to kill, found in your vicinity? Please check those that occur 

 or add the names of othei's: 



Quack Grass Corn Cockle 



Wild Mustard Squirrel-tail 



Canada Thistle Marsh Elder 



Wild Oats Cocklebur 



Sweet Clover Curled Dock 



Clover Dodder Smooth Dock 



Alfalfa Dodder Horse Nettle 



Field Dodder Jimson Weed 

 Cowbane 



2. If there are any noxious weeds in your vicinity, of which you do 

 not know the name, please send samples to Prof. L. H. Pammel, Ames, 

 Iowa, for identification. 



3. Are the weeds you have namd found in the highways? 



Railway right of way? Private grounds? 



4. What methods that have been used to eradicate these weeds 

 have failed ? • • 



5. What methods have been used successfully? 



Signed 



Township . . . 



County. . . 



State . 



Date 



Form No. 



COMMITTEE ON ADULTERATION OF FOODS, SEEDS AND OTHER 



PRODUCTS OF THE IOWA STATE DEPARTMENT OF 



AGRICULTURE. 



WEED INVESTIGATION. 



Iowa Experiment Station, Ames, Iowa, July 20, 1907. 

 Dear Sir: 



The information requested below will be of very great assistance in the 

 weed investigation, being conducted by the Iowa Experiment Station, in 

 co-operation with the State Department of Agriculture. Will you kindly 

 answer the questions below as far as you are able and return to us? 

 Yours very truly, 



C. F. CURTISS, 



Director. 

 The remainder of form No. 3 is the same as form No. 2. 



