472 



INDEX. 



Winter (G. K.), observations of the 

 corona during the total eclipse of 

 August 7, 1869, by, 17; on the 

 determination of the size of the 

 wire which, wound upon a galva- 

 nometer or electromagnet, will pro- 

 duce the maximum magnetic effect 

 in a circuit, 109. 



Wiillner (A) on the spectra of some 



gases under high pressures, 365. 

 Wurtz (H.) on flame-temperatures in 



their relations to composition and 



luminosity, 2!^0. 

 Zirconia, on some remarkable spectra 



of the oxides of, 450. 



END OF THE THIRTY-NINTH VOLUME. 



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