190 Symmetry of Egg and Symmetry of Embryo in the Frog 
TABLE XXXVIII. 
When the Sperni-path is turned towards the First Furrow. 
I. Eggs close. Axes horizontal. 
Sperm entrance 
S erm ntr c 
Plane of 
S h 
Ani'le 
Meridian and 
Meridian "and^ 
Meridian and 
First Furrow 
Plane of Symmetry 
First Furrow 
Plane of Symmetry 
-90—75 
1 
1 
7 
1 
75—60 
3 
1 
3 
0 
60—45 
5 
5 
3 
5 
45—30 
4 
8 
4 
6 
30—15 
7 
7 
2 
7 
15-0 
7 
5 
9 
+ 0—15 
4 
2 
11 
4 
15— SO 
4 
8 
3 
8 
30 — 4^ 
4 
4 
4 
5 
45—00 
6 
4 
2 
3 
60—75 
6 
2 
2 
2 
75-90 
2 
2 
5 
1 
Totals 
53 
51 
51 
51 
M 
+ 4-67''±4-18 
- 2-82° ±3-83 
- 4-23 ±4-80 
- 0-44° ±3-46 
(T 
45-15° ±2-96 
40-53° ±2-71 
50-87 ±3-39 
36-66° ±2-45 
II. Eggs spaced. Axes vertical. 
Sperm-entrance 
Sperm-entrance 
Plane of 
Sperm-sphere 
Angle 
Meridian and 
Meridian and 
Symmetry and 
Meridian and 
First Furrow 
Plane of Symmetry 
First Furrow 
Plane of Symmetry 
_ 90—75 
1 
0 
0 
75—60 
1 
0 
1 
60—45 
0 
1 
1 
45—30 
1 
1 
1 
30—15 
4 
2 
1 
15—0 
4 
3 
5 
+ 0—15 
1 
4 
1 
15—30 
0 
1 
0 
30—45 
0 
0 
2 
45—60 
1 
1 
0 
60—75 
0 
0 
2 
0 
75—90 
1 
I 
0 
0 
Totals 
14 
14 
14 
14 
M 
-ll-35° + 7-26 
- 0-36° ±601 
- 1-07 ±5-90 
- 8-57° ±6-70 
a- 
40-26° ±5-13 
33-33° ±4-25 
32-67 ±4-18 
37-19° ±4-74 
