xii Proceedings. [Jan?iary yth^igij. 



Ordinary Meeting, January 7th, 191 3. 



Mr. Francis Jones, M.Sc, F.R.S.K., F.C.S., Vice-President, 

 in the Chair. 



A vote of thanks was accnrded the donors of the books 

 upon the table. Amongst these were: ^"^ Rapporten vati de 

 Commissie in Nederlandsch-I?idie voor Oudheidkiifidig Onderzoek 

 op Java en Madoera" 191 1 (4to., Batavia, &c., 1912), presented 

 by the Bataviaasch CJenootschap van Kunsten en Wetenschappen, 

 Batavia ; and parts of two new periodicals — The Joiimal of the 

 College of Agriculture, presented by the Imperial University, 

 Tokyo ; and The Science Reports, 2?id Series ( Geology), presented 

 by the Tohoku Imperial University, Sendai. 



A new exchange has been arranged with the Indian 

 Association for the Cultivation of Science (Bulletin), Calcutta. 



Dr. G. HiCKLiNG made a short communication with regard 

 to a remarkable band-like cloud, seen by him on the night of 

 December 24th last, which it was suggested was possibly due to 

 cloud formation on the trail of dust in the track of a meteorite. 



Dr. H. F. Coward described some experiments, carried out 

 by Mr. F. Brinsley and himself, which led to' the production of 

 vortex rings of flame in mixtures of gases containing too little 

 of the inflammable constituent for complete inflammation. The 

 formation of vortex rings of flame in a hydrogen-air mixture was 

 shown. 



Papers, entitled "The specification of the elements 

 of stress," Part II.— "Simplification of the specifica- 

 tions already given " (vide Manchester Memoirs, Vol. LVL, 

 No. 10), and Part III.— "An Essay towards the re- 

 construction of the fundamental equations," were read 

 by Mr. R. F. Gvvvther, M.A. 



These papers will be printed in full in the Memoirs. 



