459 
DE. A. W. HOFMANN 
ON THE 
PHOSPHOEHS-BASES. 
Angles. 
Calculated. 
Observed. 
O 
1 
0 t 
Oil, 
211 
= 
103 
56 
111, 
llT 
= 
121 
14 
121 23 
111, 
Til 
67 
7 
56 49 
111, 
111 
= 
93 
12 
111, 
211 
= 
76 
14 
75 53 
111, 
2ll 
= 
82 
5 
Til, 
111 
= 
120 
28 
Til, 
211 
= 
19 
7 
19 4 
Til, 
2lT 
= 
124 
23 
211, 
211 
134 
59 
According to Naumajs^n : — 
a : 5 : c=0-6580 : 1 : 0-9685 ; 7=89° 2'. 
Foi-ms observed : — 
goF oo, ooPoo, 00 P, Poo, — Poo, Poo, P, — P, 2P2. 
According to Weiss : — 
a:h'. c=l : 0*9685 : 0-6580 ; aoc=90° 58'. 
Forms observed : — 
a : oo b : CO c; ooa: bicoc; a:b :coc; a: cob : c; — a: cob : c; 
CO a: b:c; a:b:c; —aibic; —\a’.b\c. 
According to Levy : — 
MM=88°11'; MP=90°40; 5:^=1:0*4726. 
Forms observed : — 
5', g\ M, o', «', o', 5^, %. 
Fig. 32. Fig. 33. Fig. 34. 
3 p2 
