6 BULLETIlSr 969, U. S. DEPARTMENT OF AGRICULTURE. 



respiration 40, the pulse being somewhat weak and irregular. Dur- 

 ing the day her condition remained very much the same, and at night 

 she seemed to be somewhat stronger than in the morning. 



On July 9 at 9.22 a. m. the temperature was 102.5, pulse 120, 

 respiration 56. The pulse was rapid, weak, and regular. The animal 

 still was weak and staggered, as in the preceding day. At 4.07 p. m. 

 the sheep was watered, and while being brought in fell and was able 

 to stand only with assistance. When placed in her pen she fell, 

 coming down flat on the ventral surface, with her hind legs stretched 

 out behind. (See PI. II, fig. 2.) She was able soon to get upon her 

 feet, but stood with difficulty, as shown in Plate II, figure 3. At 

 4.27 p. m. she was down again in the same position as shown in Plate 

 II, figure 2. At 4.46 p. m. her temperature was 103, pulse 170, res- 

 piration 60. Respiration was irregular ,and she was unable to stand 

 on her feet very long. 



On July 10 at 9.03 a. m. the temperature was 102.1, pulse 140, 

 respiration 80. During the day the animal continued much as on 

 the preceding day, but apparently was somewhat stronger. At 9.45 

 in the morning she was taken out of the pen and placed in the yard, 

 where she could get at grass, but ate very little. Plate II, figure 4, 

 shows the attitude assumed by the animal. At 4.21 p. m. the tempera- 

 ture was 104.3, pulse 128, respiration 82. At 7.20 p. m. she suddenly 

 fell in a spasm, drawing the head back in a position of opisthotonos and 

 using the legs vigorously. She was unable to get upon her feet until 

 7.24 p. m., when she stood with legs spread apart, head low and 

 stretched forward. At 7.27 p. m. she stepped back with her head 

 held high, fell over on the left side, groaned, struck her head upon 

 the ground repeatedly, then threw the head back in a clonic spasm fol- 

 lowed by a tonic spasm. At 7.33 p. m. she was lying with head partly 

 raised and shaking as if with palsy. At 7.34 p. m. she rose to her feet, 

 but at 7.35 fell with the forefeet spread out. At 7.38 p. m. she was upon 

 her feet again, and was able to stand in a very uncertain way, but 

 was down again at 9.35 p. m., the mouth moving as if chewing. She 

 was somewhat salivated at this time. At 10 p. m. she was still down, 

 but with the head erect, moving from side to side. At 10.15 p. m. she 

 was going through a series of clonic spasms. At 11 p. m. she was 

 dead, having struggled more or less violently just before death. 



No good pictures were taken of this animal during the period of 

 spasms, but Plate II, figures 5 and 6, which were taken of Sheep 590, 

 show some of the characteristic attitudes assumed by animals in the 

 stage of spasms. Figure 5 shows very clearly, in the condition of 

 the ground of the corral, how the animal when down goes through a 

 series of motions. This . animal differed somewhat from others in 

 that at no time was there an extremely high temperature. 



