212 
DE. A. E. H. TUTTON ON THE 
Iinterfacial Angles of Caesium Nickel Selenate. 
Angle. 
No. of 
measurements. 
Limits. 
Mean 
observed. 
Calcu¬ 
lated. 
Diff. 
[ac. =(100): (001) 
0 / 0 / 
o / 
73 49 
' A 
as = (100):(101) 
— 
— 
44 51 
— 
sc =(101): (001) 
— 
— 
— 
28 58 
cr = (001):(201) 
14 
64 42- 65 4 
64 54 
64 54 
o 
cs' =(001): (101) 
— 
— 
— 
39 11 
— 
sr = (101):(201) 
— 
— 
— 
25 43 
— 
r'a =(201): (100) 
— 
— 
— 
41 17 
— 
[ r'c = (201): (001) 
14 
114 55-115 19 
115 5 
115 6 
l 
\ap =(100): (110) 
— 
— 
— 
34 58 
_ 
\PP = (110): (120) 
— 
— 
— 
19 28 
— 
p'b =(120): (010) 
— 
— 
— 
35 34 
— 
-i 
PP"' = (HO): (130) 
— 
— 
— 
29 33 
p'b = (130) : (010) 
— 
— 
— 
25 29 
__ 
pb =(110):(010) 
48 
54 58- 55 6 
55 2 
-*• 
l PP =(H0): (110) 
2G 
69 50- 70 0 
69 56 
69 56 
0 
$cq = (001): (Oil) 
48 
25 33- 25 44 
25 37 
25 37 
0 
\qb = (Oil): (010) 
48 
64 17- 64 29 
64 23 
* 
fao = (100):(111) 
— 
— 
— 
48 2 
— 
1 oq =(111): (Oil) 
— 
— 
— 
27 25 
_ 
■{ aq = (100): (Oil) 
— 
— 
— 
75 27 
— 
\qo = (Oil) : (111) 
1 
— 
35 18 
35 19 
1 
lo'a =(111): (100) 
— 
— 
69 14 
—■ 
r co =(001): (111) 
— 
— 
_ 
34 23 
1 
op = (111) : (110) 
— 
— 
42 25 
— 
J 
cp =(001): (110) 
40 
76 41- 76 56 
76 48 
* 
— 
po =(110):(111) 
8 
57 55- 58 4 
58 0 
58 0 
0 
.o'c = (111): (001) 
10 
45 2- 45 21 
45 12 
45 12 
0 
'bn = (010):(121) 
— 
— 
— 
54 51 
— 
J 
no =(121):(111) 
— 
— 
-— 
15 45 
— 
1 
bo =(010):(111) 
— 
— 
— 
70 3§ 
— 
...os =(111): (101) 
— 
— 
19 24 
— 
'bo' = (010): (Ill) 
9 
65 12- 65 26 
65 18 
65 19 
1 
os' = (111): (101) 
— 
— 
— 
24 41 
— 
.do' =(111): (111) 
1 
— 
49 23 
49 22 
1 
'sq =(101): (Oil) 
— 
— 
37 55 
— 
J 
qp =(011):(110) 
40 
87 32- 87 43 
87 37 
87 36 
1 
1 
ps = (110):(101) 
— 
— 
— 
54 29 
— 
JPi =(110): (Oil) 
40 
92 18- 92 28 
92 23 
92 24 
1 
f«'2 =(101): (Oil) 
— 
- ~ 
— 
45 39 
— 
| qn = (Oil):(121) 
— 
— 
— 
26 37 
— 
\np =(121): (110) 
— 
— 
— 
36 24 
— 
| qp = (Oil):(110) 
40 
62 54- 63 5 
63 0 
63 1 
1 
| ps =(110):(101) 
— 
— 
— 
71 20 
— 
L H =(H0): (Oil) 
40 
116 56-117 6 
117 0 
116 59 
1 
Vo' = (201) : (Ill) 
10 
34 51- 35 14 
35 5 
35 4 
1 
\ 
o'p =(111): (110) 
12 
92 48- 93 6 
92 54 
92 57 
3 
1 
.W' =(H0): (201) 
23 
51 50- 52 10 
52 1 
51 59 
o 
Total number of 
measurements . . 
472 
