TRANSACTIONS OF SECTION B. 625 



in a like manne the power of combining with aldehydes except those containing 



I '■' 



the grouping C <^ -^p, free from hydrogen. The author has not been able to es- 

 I \JNU2 



tablish this condensation with acetone or with ethylene oxide such as | y 



CH/ 

 It also appears not to take place with the aromatic aldehydes, notably with benzoic 

 aldehyde. The basic hydrogen in the nitro-paraffins seems to behave in a manner 

 similar to the hydrogen in hydrocyanic acid. He concludes also that these con- 

 densations are but particular cases of a general rule. All compounds containing the 



chain — C — H with basic hydrogen, such as — 

 I 

 COCOCHj) COCOCHj) COCOCHj) CH3 HCCCOCOCH^)), 



&c., &c. 



CHj CHj CH„ CO 



COCOCH,) ON CO CHj 



CH3 CO 



I 

 CH3 



are capable of condensation more or less easily with aldehydes, less with those 

 where the aldehyde character exists with greatest intensity. The author sub- 

 mitted also a list of the nitro-alcohols which he has prepared up to the present 

 time. The three possible nitro-propyl alcohols, together with a triclor-nitro-propyl 

 alcohol were included, also five nitro-butyl alcohols and four nitro-hexyl alcohols. 

 Of the halo-nitro-alcohols three were described, having formulae — 



CHoOH CHjGH CHjGH 



I ' I I 



CBrNO, CClrO^ and r/^'' 



'"\H0. 



CH,OH CH„OH 



2 



I 

 CH3 



The author has been unable to obtain as yet a nitro-nitrile such as ON-CH^NO^. 

 A student in his laboratory however has prepared CN'CHj-CHj-CHrO^. The 

 author is now engaged in studying the effect of the nitro group upon the intensity 

 of the alcoholic character of these bodies, as well as the products of the oxidation 

 of the nitrated primary and secondary alcohols, with the view of obtaining from 

 them nitrated aldehydes and ketones, and the products of reduction of the nitro- 

 alcohols leading to the preparation of corresponding alcoholic amines. 



7. The T'laster of Paris Method in Blotvpijoe Analysis.^ 

 By Professor W. W. Andrews. 



In a paper published in the October number of the ' Journal of the American 

 Chemical Society,' entitled ' Some Extensions of the Plaster of Paris Method in Blow- 

 pipe Analysis,' the author gave some account of the development of this method since 

 Dr. Eugene Haanel first proposed this new support.- The new composition of the 

 tablets, the new easily prepared and portable reagents, and the reactions they yield 

 with the metals were there described. The author now gives some new applica- 

 tions of this support and some new reactions. The iodide coatings of the metals 

 are shown. 



The addition of boric acid to the calcium sulphate in the manufacture of the 



' Published in extenso in the Chemical News, January 1898. 

 * This paper was republished in the Chemical News, November 1896. 

 1897. s S 



