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If the United Nations is ever to assume the greater powers needed for effective peace-keeping and peace-making, the General Assembly and/or the Security Council will need an improved system of representation and voting. The present system of giving each country one vote in the General Assembly, regardless of the country's size, and of giving a veto in the Security Council to five big powers, is unrealistic and imperfect for many reasons, which need not be detailed here.

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Monomesylhydrazide, 1-acetyl,2-me~~lhydrazide, and sym-dimesylhydrazide were obtained by means of the Schotten-Baumann reaction. For comparison with these compounds the hydrazinium dimesylate, hydrazinium monomesylate, monomesylhydrazide n~esylate, and monoacetylhydrazide mesylate were prepared. The preparation of dirne~~ldiimide by the action of metallic sodium on N,N-dichloromesyla~nide was attempted.

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T h e syntheses of ~-a -m o n o r~~e s y l i l l~~, ~-cu,P-and DL-a,~clirnesyIin, and trimesylin are described and some of their physical prvperties are reported. I t was observed that the optical rotations of L-a-nionomesyli~~ and ~-a , P -d i l n e s~l i n in pyridine solutions change with time, whereas the rotations of the same compounds i n the sterically hindered bast., 2,G-lutidine, remain constant. Of t h e two previously reported values for the refraction of t h e 4-SO?-group the value of Tasker and Purves was confirmed. T h e mono-and dil~lesylins form t h e starting materials for tlie syntheses of the diacyl L-a-n~onomesylins and the acyl ~-a , P -d i n~e s~l i n s .

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