652 General Notes. (June, 
Over the cork and open end of this short delivery tube, a piece 
of fine muslin (æ) is stretched, 
and the space (4) in the large 
tube is filled with a loosely 
packed plug of absorbent cot- 
ton, forming an e ; 
The second tube ends above 
the cork in a “thistle-bulb” 
funnel (e), the opening in which 
is formed into a neck of suf- 
cient length to enable one to 
cork it securely. Through this 
thistle-top tube the reagent 
may be readily poured from a 
dish or other vessel. The thi 
tube (g) is bent over the side 
of the bottle and a piece 
rubber tubing isattac 
may end either in a short glass 
Fic. 1.—Filtering Wash-bottle. mouth-piece or aT 
as the student may elect. In case the bulb is used it will be 
necessary to loosen the cork in the funnel-tube (e) when a 
cient quantity of the contents has been expelled, in order to tè- 
lease the pressure and stop the flow.. dri 
This bottle differs from the one described at Montreal wi 
the use of the thistle-top tube and common bottle, 1n got she 
more expensive three-neck or Wolfe’s bottle. The ess a 
tubes may be purchased for about fifteen cents apiece, wht 
Wolfe’s bottle would cost fifty cents or more. — 
-pi r at for a 
ton. A gentle breath at the moutlt-piece, pore steadily for ® 
ful of the reagent © 
obtained. er will ot bebt 
When the plug of cotton becomes foul, wie bet replaced tY | 
a long time, even with hematoxylin stain, it 
a fresh one. The cotton should be but loosely packe 
when it will be found that the succeeding 
filtered.—From the Am. Mo. Mic. Jour. March, pe 
easily. If the contracted end of the delivery | pin or fit . 
ed with ee bottle | 
