( 2^21 ) 



Thomson {William].— llydroVmclk solutions and observa- 

 lions. 'I871;extraitin-8''. 



— Yibralions and waves in a stretched uniform chain of 

 symmetrical gyrostats. Londres; cxtr. in-8°. 



— On a uniform-cleetric-current accumulator. — On volta 

 convection by flame. — On electric machines founded on 

 induction and convection. 48C8; extr. in-S". 



— Discours prononce le 7 decembre 1874 en decernant a 

 M. Tail la medaille Keith pour son ouvrage : « First approxi- 

 mation to a thermo-electric diagram. » Edimbourg, 1874; extr. 

 in-8°. 



— On beats of imperfect harmonies. Edimbourg, 1878; 

 extr. in-S". 



— On the thermoelastic, thcrmomagnetic and pyroclectric 

 properties of matter. 1878; extr. in-8°, 



— Problems relating to underground temperature. 1878; 

 cxtr.in-8». 



— Notice necrologique sur Archibald Smith. Londres, 4874; 

 extr. in-8°. 



— Report of the committee appointed for the purpose of 

 promoting the extension, improvement and harmonic analysis 

 of tidal observations. Londres, 1876; exlk in-8". 



— Electrodynamic qualities of metals : EfTecis of stress on 

 magnetization. Londres, 1875; extr. in-8°. 



— Electrodynamic qualities of metals : Effects of stress on 

 magnetization. 187G; extr. in-4"'. 



— On the thermal effects of fluids in motion : On the changes 

 of temperature experienced by bodies moving through air. 

 Londres, 1860; extr. in-4°. 



Gibson {John) and Barclay {Th.). — Measurements of spe- 

 cific inductive capacity of dielectrics, in the physical laboratory 

 of the University of Glasgow. Londres, 1871 ; extr. in-i". 



JJugald M. Kichan, — Determitiation of the number of 



