EECEEATIVE SCIENCE. 



177 



certainly not advantageous. I obviate this by 

 an invention I call achromascopeCFig.d). This 

 is a hollow cone, twelve incbes long, five in 

 diameter at the base, and one inch in diameter 



watched with great interest and mmuteness, 

 and the colours shine out and sparkle with 

 great brilliancy. I have made patterns which 

 from their effect we call the "Meteor," the 



Fig. i.—A Beautiful Plaid, 

 at the apex, painted black inside. The effe ct 

 of this apparatus is truly surprising when 

 held vertically about half an inch over the 



Fig. 5.-^Constellation. 



Fig. G. — Comet. 

 "Constellation," the "Comet," etc., and 

 which can only be viewed, with proper 

 effect, with the chromascope. 



black disc, and the eye applied to the smaller 



end. All that was misty before is now clear ^^^.^, - ^^.^^ — — i- - 



enough ; the changes and alternations may be i may be divided into classes. It may be stated 



19 Q 



Fig. 7.— Open Pattern "Work. 



Having thus briefly described the instru- 

 ments, I append a few experiments, which 



