1871J LIST OF WOODCUTS. 573 



LIST OF PLATES IN VOLUME I. (N.S.). 



Double Spectra (Chromolithograph) . 



Double Spectra 



Spectra of Certain Metallic Compounds 

 Steam Boiler Explosion .... 

 The Corona. Eclipse, December, 1870 



page. 



1 



11 



63 

 225 

 242 



LIST OF WOODCUTS IN VOLUME I. (N.S.). 



Scott Gun-Carriage 47 



Moncrieff Gun-Carriage 48 



Electric Torpedo • 57 



Solar Protuberances (8 figures) 107 to 109 



Automatic Arrangement of Prisms for Spectroscope . . . .110 



Varley's Singing Telegraph (3 figures) 117,118 



Siemens's Electrical Pyrometer ng 



Thomson's Syphon Recorder (3 figures) 120 



New Experiments in Diamagnetism (4 figures) 121 



Improved Daniell's Battery 123 



Filter Pump 129 



Corpuscles obtained from Atmospheric Air 156 



Fructification of Penicillium crustaceum i^g 



Spores of Penicillium crustaceum Bursting in Water .... i^g 



Cryptococcus in Various Grades of Development from Penicillium . 160 



Milk Ferment ....... 160 



Acetic Ferment in Course of Development 161 



Acetic Ferment from Surface of Stale Beer i6 r 



The Corona. Eclipse, December, 1870 240 



Illustration to Objection to Oudemann's Theory of the Coronal Radiation 246 



Ascent of Soap-bubbles Filled with Hydrogen 260 



Sun Spot presenting the Appearance of Cyclonic Motion . . . 266 



Vast Scale of the Larger Solar Prominences 266 



A Group of Solar Prominences 267 



Ditto Ditto ten minutes later 268 



Grubb's Automatic Spectroscope 270 



Adaptation of the Immersion Principle for Illuminating Microscopic 



Objects (2 figures) .......... 273 



New Microscope Lamp (3 figures) 276 



Arrangement of Percussion Fuse 291 



