A Convenient Potash Bulb.

SOlt POTASH-POTASH INVESTIGATION-POTASH DEFICIENCIES

It is in this connection that it becomes very difficult at times for the agricultural scientist and practical agriculturist to meet on common ground, for very often a popular version of scientific reasoning may appear ambiguous, and in this case it would appear better to sacrifice the facile version (since the layman can always get an interpreter to explain if he is sufficiently interested) tha...

Caustic Potash in the Treatment of Carbuncle

plaint. For, no sooner is it known that the doctor has pronounced some old gentleman to be suffering from a carbuncle, than the friends of the latter would assuredly hint at haviug his " affairs set in order." Statistics, however, do not show the apprehension to be well grounded, and neither have I in my small experience observed the mortality, amongst those who have suffered from it, to be so ...

A CONVENIENT SYNTHESIS OF MACROCYCLIC DIAMIDES

Some new macrocyclic dibenzotrioxadiamides, dibenzotetraoxadiamide, dibenzopentaoxadiamide, dibenzothiatrioxadiamide, tribenzotrioxadiamides and tetrabenzohexaoxadiamide (14-21), (26) and (27) have been prepared. These compounds were obtained in the macrocyclization step by reacting the diamine (4) with appropriak dicaxboxylic acid dichlorides (5-13) and (24). The cyclization does not requ...

Modeling of a Novel Solution Potash Mining Process

A Convenient Small Osmometer

A description is given of a simple, rugged instrument for determining the osmotic pressure developed by a solution of a high polymer. Other small osmometers described previously [1, 2, 3, 4, 5]/ have been, in some respects, too inconvenient to use. Although relatively easy to make, glass osmometers are fragile and may require frequent repairs. Small metal osmometers, in addition to being rugged...