ELISHA MITCHELL SCIENTIFIC SOCIETY. 103 



Up to the last fraction E. This one approaches in all of its 

 percentages very nearly to C^ H,3 Clo. That it is free from impu- 

 rity is hardly possible because of inconstant boiling point. As 

 to the nature of the more highly chlorinated body or bodies with 

 which it is mixed, nothing can be determined by the analyses. 

 From the great difficulty with which the chlorine was removed, 

 it is most probable that simple chlorides were present. Nitric 

 acid caused complete decomposition only in the neighborhood of 

 200° and nascent hydrogen failed to act. 



As the nature of the reduction products would throw some 

 light on the composition of these fractions, their reduction was 

 attempted. First iron filings and acetic acid were used, then 

 sodium amalgam, but the chlorine was not entirely removed even 

 after days of action. The small amounts experimented with 

 rendered vain any attempt at separation by distilling. To 

 sum up the results of the action of hypochlorous acid upon 

 heptylen from Pinus Sabiniana, we find acetic acid and some 

 chlorinated solid acid fi)rMied by the oxidiziup; action, but the 

 main portion changed into a chlorhydrin mixed probably with 

 chlorides. The ease of decomposition of the hypochlorous acid 

 renders it hardly possible to limit the nature of the reaction and 

 prevent its becoming very complex. 



No. XXXVI. 



A NEW FORM OF BUNSEN BURNER. 



[See figure at back of Journal.] 



F. P. VENABLE. 



In using gas prepared from gasoline for heating purposes in 

 the laboratory, I have been much troubled bv the smoky flame 

 given by the ordinary burner when fresh gasoline is in the gen- 

 erator. This is due to the larger amount of light hydro-carbons 

 present at that time and to the decreased pressure. 



