TechnologyNovember 19, 1910
Ingenious Tube Expander
Stories by W. J. C.
The SciencesNovember 27, 1909
Scissors with a Saw-Tooth
The SciencesJuly 31, 1909
Automatic Lubricating Cup
The SciencesMay 15, 1909
Blue-Print Washer
The SciencesJanuary 23, 1909
Mending a Cracked Bottle
TechnologyJanuary 9, 1909
Further Details of the Home-Made Vacuum Cleaner
TechnologyNovember 7, 1908
Home-Made Vacuum Cleaner