Page:The American Journal of Psychology Volume 1.djvu/45

 NORMAL KNEE-JERK.

39

Explanation of the Table.— In. the first column of the table is given the date of the experiments, and in the first line the hours of the day at which the examinations were made. Beneath the hours, on the same line with the dates, is arranged the average of all the experiments made in the seven examinations of the correspond- ing day. The table, therefore, enables one readily to compare the results of all the experiments made on each day and of all the ex- periments made at the same hour on different days. At the bottom of the table, under the hours, is given the average of all the experiments taken at the same hour on all the different days of the series. In addition to this, the table shows the average extent of the knee-jerk for each day ; the number of examinations and experiments which were made on each day ; and the mean of the barometer and thermometer for each day. Finally, at the bottom of the table, beneath these columns, is placed the average knee- jerk, as determined by all the experiments in the series, and the mean barometer and thermometer for the two weeks under con- sideration.

Summary of Results of Examinations of Series I.

<-*

11

7 7 7

^

u

8

April, 1887.

8-9

9-10

1-2

6-7

8-9

10-11

fa

> <

149 169

178

a!

5

® 2 3

1st

30

28 40*

88 72 04*

111 63 39

68 52

74*

49 23 33

44 33

57**

45 58 18

63 47 47

30.092 29.879 30.022

34

2d

44

3d (Sunday)

52

4th

31 19 23

73 51 79

20

27 49

24 43 54

27 15

21 57 32

22 23 29

31

37 40

7 6

7

177 135 173

29.808 30.038 30.328

61

5th

38

6th

40

7th

29

a

35

13

71 70 71 53

66 29 37 26

34 42 88

44*

31

44 21

52 51 33 31

32 43 14

17

45 43 35

31

7 7 7 6

175 183

178 144

30.477 30.577 30.383 30.127

44

8th

46

9th

50

10 (Sunday)

67

11th

9

40

23

41

27

25

20

27

7

176

30.076

72

12th

20

57

21

42

29

34

10

30

7

165

30.247

58

13th

25

74

44

46

42

50

20

43

7

167

30.304

51

14th

20

53

42

41

16

36

35

6

151

30.216

50

25

65

43

47 30

40

27

40

95

2320

30.184t

50°. 5$

♦The examination was one hour late. ♦"The examination was one hour early. +Mean barometer for April, for 16 years, was 29.995. jMean thermometer for April, for 16 years, was 53.°3.