1886.) Microscopy. 2 QII 
oratory. The outlay is somewhat greater at first, and the increased 
consumption of gas makes the expense still more, but both are 
more than counterbalanced by the advantages of having all one’s 
materials close at hand, and of being free from the unavoidable 
interference incident to the use of common property. 
e water-bath employed is that which was introduced by 
Paul Mayer! at the Naples Zodlogical Station, with slight modifi- 
cations which will be described below. 
The operations are more conveniently managed if the top of 
the water-bath is nearly on a level with the top of the work-table. 
If it is supported on a tripod standing on the table, it is too high 
to be easily watched, and cuts off light from the table unneces- 
sarily. It is easier as well as safer to adjust the distance between 
_ the bottom of the water-bath and the gas jet by making the latter 
rather than the former. movable. 
These considerations have led to the adoption of the followinz 
arrangement. The bath is supported (Fig. 1) on a wrought-iron 
= bracket of the form indicated in Fig. 1 å, firmly screwed to the 
= end“ bed-piece” of the work-table A 
‘Ss 
D 
a. 
@ 
5 
A 
2 
Z 
B, 
a 
oo 
3 
pn | 
r 
Q 
ct 
ively even with the top and end of 
of the table. The bath is thus 
Practically at one’s elbow without 
interfering with the ordinary oper- 
ations . 
a The bracket is made of heavy 
= iron, about 25 x 3™™, bent 
intoa 
‘tom which any accumulation of 
Dede may be readily removed. The | 
resting on the guard is se- Fic. 1. 
“ured against accidental displacement by passing, at each end, a 
“Opper Wire through the oven in the bath and winding it securely 
_ found the bracket. ae 
oS aed Sond burner is carried by a fork support which clamps to a 
: tsir round iron, and may therefore be readily adjusted to any __ 
“*Sired distance from the bath. The rod is bent at right angles ~ 
TAM. NAT:, Vol, xvt, p. 785, Oct, 1882. 
mn 
