82 
Angular values : Observed : Calculated : 
t:¢ == (110): (110) =* 97° 4’ _ 
q:q == (011): (011) =* 49 51 me 
t:m=(110:(320) —= 11 12 11° 0’ 
mizp == (920): (210) =S 6 22 6 37 
Pin = (210) 4920) = 8 40 8 31 
A distinet cleavability was not stated. 
The specific weight of the crystals was: 1,141 at 18° C.; the 
equivalent-volume is thus: 176,16, and the topical axial ratios are 
calenlated at %: a: w = 6,6649: 7,5395 : 3,5059. 
§ 8. VII. p-Methoxy-benzal-aniline (Anisai-aniline). 
This substance, which melts at 63° C., and 
possesses the constitution: 
OCH; 
CH=N—C,H; 
was obtained from anisaldehyde and aniline. 
- It crystallizes from ligroin in colourless, well 
developed, very transparent crystals, having the 
odour of anisol. 
Monochnic-prismatie. 
a:b:¢==1,5745 : 1: 0,8063; 
B= 65°21’ 
Forms observed: c= {001}, well developed 
and yielding splendid reflexes; q = {011}, 
r —{201}, and o = {211}, givingall sharp mirror- 
images; m—{110} and a=$100}, somewhat nar- 
rower, but well measurable. The form a is often 
absent, or only developed with a single face, 
while o and + are often very narrow. The aspect of the crystals 
is that of thick prisms with an elongation parallel to the c-axis. 
They are generally well built. 
Fig. 8. Methoxy-benzal- 
aniline. 
