,
…
1
'
'
:
‘;
;
:
;
—
’
f
?… *—.
.
.
,
.
@
,
(“)
'“
FIGURE 6. Ice crystals growing from
—
__
«
_
the vapour on a hexagonal cadmium
"
%;?
,
_
iodite single crystal.
.
100 p.
l_l
,
i'
»
?
,
î.Ç1_'Ï “
…‘1, ;:
__
'
*
'
FIGURE 8. Thin section of a 0.1 cm
_
,
f
_
'
diameter drop frozen at —— 12 °C, in
_
"
'
‘
polarised light, showing it to be made
,a
_
'
'
up
of
ice
with
several
crystal
.
'
'
orientations.
,
'l£3Ï '
.
.
-
-
*
"
.“
100 p…
[__]
FIGURE 10. Ice dendrites growing in
'
1 Molar NaCl Temperature —— 5,4 °C
'
(supercooling 2.0 °C).
1 mm