List of the Lecture Series. 



19. — " THE MICROSCOPE, ITS OPTICAL PRINCIPLES, CONSTRUCTION AND 

 APPLICATION." 



Delivered on Tuesday, February 25th, by H. T. Gladwin, 

 Sub-Immigration Agent. 



|HE le6lurer began by explaining the optical 

 principles of the microscope, tracing tha 

 effe6l on the rays of light, of the various 

 simple lenses and the combination of these to produce 

 the compound microscope ; the various applications 

 which have been made of the microscope were then 

 referred to, and an exhibition given of a number of 

 slides illustrating various parts and specimens of Inse6ls, 

 by means of a magic lantern with the oxy-hydrogen 

 light. 



20. — " LONDON." 



Delivered on Tuesday, March 25th, by E. C. Luard, Manager, 

 Plantation Peter's Hall. 



The le6turer began by giving statistics relative chiefly 

 to the size and importance of London ; and of the 49 

 photographic views, which were shown by means of 

 the oxy-hydrogen light, information was given as to the 

 history of each, with the prominent features associated 

 therewith. 



Erratum. 

 On page 89, line 22, for Reese, read Rose. 



