CONTENTS. 



LECTURE I. 



BY W. SrOTTISWOODE, F.R.S. 



PAGE 



POLARISED LIGHT 1 



LECTURE II. 



BY PROFESSOR FORBES. 



THERMAL CONDUCTIVITY 15 



THERMO-DYNAMICS 32 



LECTURE III. 

 BY H. W. CHISHOLM. 



ON BALANCES 48 



LECTURE IV. 



BY PROFESSOR T. F. PIGOT. 



GEOMETRICAL AND ENGINEERING DRAWING 77 



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