LABORATORY NOTES. 51 
’ g 
present leaves are curiously folded with patent hairs almost touch- 
ing each other, looking much like a trap. Mr. Watson (Cyb. Brit, 
7 | Bg 
but rather as a biennial than perennial, 
LABORATORY NOTES. 
By Spencer Le M. Moorr, B.Sc., F.L.S. 
I. Tux pest way To make Minton’s REAGENT. 
HE usual method of making Millon’s reagent is that given by 
8 
being caused before the fluid is ready, but the process is not 
feasible, supposing only a little of the reagent to be required. 
Seeing that Millon’s fluid is well known as being a mixture of mer- 
pleasant smell caused, and just as much or as little of the reagent 
can be made—if it be only a few drops—as the operator requires. 
II, A NEw WAY OF DEMONSTRATING CONTINUITY OF PROTOPLASM. 
Within the last three years I have had much occasion to use 
Millon’s fluid in connection with researches on callus and para- 
callus, and on the chemical constitution of cell-walls. Having 
frequently noticed that by careful boiling of sections mounted in 
up. Preparations so treated may, after thorough washing, be 
mounted in glycerine, and they will keep for years. When it is 
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