848 



Popular Science Monthly 



The cane, with sewing-bag attached, is stuck into 

 ground near chair, leaving you unencumbered 



Red Cross Knitters and Sewers, 

 Please Learn How to Use a Cane 



IF you enjoy sewing out-of-doors, but 

 object to a lap-full of the necessary 

 materials, here is a little device which will 

 make sewing in the garden an unalloyed 

 pleasure. And best of all, you may not 

 have to buy a single article in order to 

 have this attractive combination sewing- 

 bag and table. 



Take a cane and attach to it a cretonne 

 bag about twelve inches long, and divided 

 into two parts. Stick the cane into 

 the ground, and you can sew as com- 

 fortably as if you were indoors. 



A Soap Bubble Can Be Made to 

 Last for Months 



THE air of an ordinary room is filled 

 with tiny particles of matter which 

 fall on the airy soap bubble, alter the 

 surface tension, and — poof — it is gone. 

 The effect of these minute particles on 

 the stability of bubbles was first brought 

 to light by Sir James Dewar. He ex- 

 perimented in clarified air until he was 

 able to produce bubbles which lasted 

 for months. He has even produced a 

 soap film, which was a year old recently 

 and which seems to remain just as it 

 was made. 



So tell the children that the secret of 

 successful soap bubbling is to have a 

 perfectly pure soap-solution and to 

 blow the bubbles in and with air that 

 is also perfectly pure. 



Soap and Fertilizer 

 from Dead Locusts 



10CUSTS are plenti- 

 ^ ful in Uruguay and 

 the farmers of that re- 

 public are compelled to 

 keep up a constant war 

 against them. Millions 

 of these destructive in- 

 .sects are killed every 

 year. Recently it was 

 learned that soap, ferti- 

 lizer and lubricating oil 

 may be obtained from 

 the dead locusts, and in 

 the future they will be 

 utilized for that purpose. 



Removable 

 glass top 



Water tar\K- 



Individual Protective Housing for 

 Delicate Plants 



FOR the protection of transplanted 

 hothouse plants, Mr. John C. Mueller 

 of St. Louis has invented a device which 

 may be described as an individual pro- 

 tective housing with hothouse and irriga- 

 tion features. The box-like device with 

 a slanting top is placed over the plant 

 which needs protection and is secured by 

 pressing the lower edges of the structure 

 into the ground. A removable top with 

 strips of glass and ventilated by holes 

 with raised edges, calculated to keep the 

 rain-water from flooding the plant, is 

 provided. If desired, a 

 water tank may be 

 placed in the upper part 

 of the housing, from 

 which water* may be 

 slowly supplied continu- 

 ously to the growing 



plant. 



Lxter\3ior\ 

 supports 



This device protects the deHcate plant 

 from excessive cold, heat, rain, and wind 



In case the 

 growth of 

 the plant 

 should make 

 it needful, 

 a second or 

 even a third 

 story may 

 be placed 

 upon the 

 original 

 structure. 



