84 
Maddox, on a Wire Spring Clip. 
Family 
POLYCYSTINA. 
Animal presenting the distinctive characters of the Heepnemata generally. 
Skeleton invariably siliceous, of crystalline transparence, colourless, never 
tubular, continuous, foraminated, forming one or more compartments. 
1. 
Omphalostype symmetrical. 
Omphalic chamber 
spherical. 
Sub-Families. 
1. 
Sphcerodina. 
o 5 » ^ 
?g ^§ 
2. 
Dichodina. 
w 
o (jq 5 o C5 
§ O C3 O o 
§ 3 H CO 
tS , S CD 
Co CD r> 3 
tJ^— ' • _. CD 
f II ^ 
o' o cT 
2. 
Omphalostype asymmetrical. 
Omphalic chamber more or 
less pyramidal and 
asymmetrical. 
3. 
Actinodina. 
02 
11 
I g 
CO Q 
pi. CD B Cr 
^ ^ ^ B 
^''^ ^ 2 
M S 
o <^ 5 
Monodina. 
On a Wire Spring Clip. 
By R. J. Maddox, M.D. 
(Read May 10th, 1865.) 
For several years I have employed the accompanying form 
of wire clip in mounting objects. It has the following ad- 
vantages :- — Is easily twisted, of little cost, and quickly at- 
tached to the ordinary slide. I make the clips of wire of 
different thickness, on tender objects using the thinner; if 
necessary, by passing to the stronger we can obtain a gra- 
duated and steady pressure before closing up the object. 
To make the clip, take a straight piece of brass wire four 
and three quarter inches in length, turn one end at six 
