16 
Experimental Illustrations of the radiating and absorbing 
Powers of Surfaces for Heat, &c. 
Replies to a Circular in relation to the Occurrence of an 
unusual Meteoric Display on the 13th ef November, 1854. 
Notice of Experiments on Electricity developed by Mag- 
netism. 
Experiments on the Efficacy of Perkins’s Steam Boilers, 
or Circulators. 
On the alleged Influence of Colour on the Radiation of 
non-luminous Heat. 
Safety Apparatus for Steam Boilers. 
Observations on the Disturbance in the Direction of the 
horizontal Needle during the Aurora of July 10th, 1833. 
Report of Experiments on the Navigation of the Chesa- 
peake and Delaware Canal by Steam. 
