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Taylor's ranch, and I was shown where the first dead hoppers were 

 seen. It was upon low, wet ground bordering an alfalfa field. Judge 

 Taylor said he had never seen the grasshoppers so numerous as they 

 were in his fields when the disease appeared. At the time of my visit 

 there were almost no hoppers to be seen on his place. The Judge said 

 that his first cutting of alfalfa was literally black with hoppers of every 

 size, from the very smallest to the fully grown. In a ride of 10 or L2 

 miles into the country about Brighton alfalfa fields were passed where 

 the tops, as seen from the road, were distinctly blackened by the dead 

 hoppers which were very often piled in clusters of two, three, or four 

 together. In this locality the great majority of dead hoppers were 

 clinging to the tops of plants. I found by inquiring that fanners who 

 had not introduced the disease were about as likely to have it abun- 

 dantly as any, but that does not seem strauge, as so many did obtain it. 

 Most farmers seemed to have noticed that it first appeared along ditches 

 or on low ground. 



Wheat Ridge, near Denver, was also visited, and Mr. David Brothers, 

 a member of the State board of horticulture, showed me the work of 

 the disease in his locality, where the hoppers Avere dying on the tops of 

 plants in considerable numbers. He did not know that the disease 

 had been artificially introduced in his neighborhood. 



Observations and experiments with the disease at the college. — On 

 account of miscarriage in the mails I did not obtain diseased hoppers 

 in quantity for experiment early in the season. The first diseased hop- 

 pers were obtained August 14 from Mr; H. T. Miller and quantities were 

 afterwards obtained from Brighton, Longmont, and Wheat Ridge. On 

 August 14 a quantity of diseased hoppers were crushed in water and 

 sprinkled upon living hoppers and their food in the fields in the even- 

 ing. On the 16th, two days later, a single dead hopper was found 

 clinging to an alfalfa stem, and from that time on the hoppers died 

 slowly, mostly on the ground. During August and September the 

 weather was dry and I can not learn that the disease spread rapidly 

 anywhere. 



Investigations in the laboratory. — (I can not at this writing find the 

 book in which all the notes upon laboratory investigations were taken 

 and will have to speak of this work quite briefly and from memory.) 

 In the breeding cages the hoppers died much more rapidly than in the 

 field, but in every instance they died on the ground and not clinging to 

 the plants. Grasshoppers dying of the disease live but a few hours 

 after they show from their actions that they are diseased, and when 

 freshly dead they are perfectly healthy in appearance. They soon turn 

 dark in color, however, and all the soft parts of the body become a 

 dark, semifluid mass. The membranes between the segments of the 

 body are so completely disintegrated that the head, thorax, and abdo- 

 men usually separate. The abdomen will often be found, soon alter 

 death, hanging in a flaccid condition and will come in pieces with the 



