48 
DR A. E. H. TUTTON ON THE 
Comparison of the Interfacial Angles. 
Angle. 
ItbCd sulphate. 
CsCd sulphate. 
AmCd sulphate. 
' ac = (100):(001) 
o / 
74 7 
72 49 
o / 
73 19 
as = (100) : (101) 
45 29 
44 31 
45 5 
sc = (101) : (001) 
28 38 
28 18 
28 14 
<{ 
cr' = (001) : (201) 
63 56 
65 5 
64 18 
cs' = (001) : (101) 
38 22 
38 54 
38 23 
sV = (101) :(201) 
25 34 
26 11 
25 55 
r’a = (201) : (100) 
41 57 
42 6 
42 23 
r ap = (100) :(110) 
35 14 
34 44 
35 14 
J 
pp' = (110):(120) 
19 28 
19 28 
19 28 
i 
pb = (120) : (010) 
35 18 
35 48 
35 18 
gpb = (110) : (010) 
54 46 
55 16 
54 46 
fcq =(001): (Oil) 
25 24 
25 8 
25 17 
\qb = (Oil) : (010) 
64 36 
64 52 
64 43 
r ao = (100) : (111) 
48 35 
47 37 
48 12 
oq = (111): (011) 
27 6 
26 52 
26 45 
aq = (100) : (Oil) 
75 41 
74 29 
74 57 
qo' = (011) : (Ill) 
34 41 
35 11 
34 43 
fo'a = (111) : (100) 
69 38 
70 20 
70 20 
f co = (001) : (111) 
34 6 
33 38 
33 43 
op = (111) : (110) 
42 59 
42 19 
42 43 
-< 
cp = (001) : (110) 
77 5 
75 57 
76 26 
po = (110) : (111) 
58 26 
59 8 
59 0 
[o'c = (111) : (001) 
44 29 
44 55 
44 34 
f bo = (010) : (111) 
70 38 
71 1 
70 45 
Ios = (111) : (101) 
19 22 
18 59 
19 15 
f bo' = (010) : (Ill) 
65 30 
65 30 
65 23 
\ o' s' = (Ill) : (101) 
24 30 
24 30 
24 37 
Csq =(101): (Oil) 
37 33 
37 9 
37 11 
< 
qp = (011) : (110) 
87 23 
88 43 
88 2 
lps = (110) : (101) 
55 4 
54 8 
54 47 
[s'q = (101) : (011) 
44 54 
45 12 
44 52 
{ W = (OH) = (HO) 
63 18 
62 30 
62 43 
lps’ = (110) : (101) 
71 48 
72 18 
72 25 
fr'o' = (201) : (Ill) 
34 50 
35 15 
35 9 
op =(1H): (110) 
92 35 
92 19 
91 58 
l pr = (110) : (201) 
52 35 
52 26 
52 53 
• 
Cleavage .—A fairly good cleavage parallel to r' {201} is developed in the 
crystals of ammonium cadmium sulphate. No trace of cleavage parallel to b {010} 
was discovered. 
