Popitlar Science MntifhJj/ 



^i7 



A New Safety Razor with a Lamp 

 Attachment 



AX Rni;lisliiiian, \vear\- of bloodslied, 

 lias l)clli<)Ught him of a means of 

 cnliglilcning the gloomy and otherwise 

 dangerous ritual of the shave. He has 

 invented a miniature electric lamp pro- 

 vided with an ad- 

 justable clip and 

 flexible cord which 

 may be attached 

 to the r.Lzor and 

 light the path of 

 the blade through 

 the tough bristles 

 of the human face. 



With his lamp 

 attachment one 

 may plunge fear- 

 lessly into the 

 blackest depths of 

 a three days' 

 growth of beard 

 and emerge from 

 the ordeal un- 

 scathed. The lamiJ 

 is attached to a 

 conventional type 

 of razor by a simple 

 clip. It travels 

 with the blade or 

 with the motion of 

 the hand. By look- 

 ing into the mirror 

 the man shaving 

 himself can deter- 

 mine just what 

 l^rogress he is mak- 

 ing and whether or not he is going to 

 come through the operation with his 

 two ears intact. 



The lamp clip can be attached to any 

 one of the many makes of safety razors. 

 The inventor is now busy on another 

 lamp attachment for the old type of razor. 



A miniature electric lamp is attached to 

 the handle of the safety razor and helps 

 to illuminate the gentle art of shaving 



How the Government Would Make 

 Paper from New Woods 



THAT .satisfactory wood pulp can 

 be made from a number of hereto- 

 fore little known woods is evidencetl b\- 

 a government publication just issuecl, 

 which contains seventy samples of paper 

 manufactured by different processes, 

 chiefly from woods practically unused for 

 this purpose up to the present time. 



What Makes the Hair Suddenly 

 Turn Gray? 



APHRNOMENON that has always 

 cU'oused curiosity is the sudden 

 turning gray of the hair under the in- 

 fluence of great emotion. Several his- 

 torical instances are open to doubt, such 

 as the case of Marie 

 Antoinette, who is 

 said to ha\'e be- 

 come gray in the 

 night before her 

 execution, but 

 there are several 

 well authenticated 

 cases vouched for 

 by medical obser- 

 \'ers. One of these 

 refers to a young 

 soldier in the pres- 

 ent war. 



He was in a 

 trench in the Ar- 

 gonne district 

 which was blown 

 up by a mine. He 

 was projected into 

 the air and then 

 fell beneath a pile 

 of debris. When 

 he was extricated 

 he was found to be 

 deaf, and a few 

 days later in an 

 English hospital he 

 noticed to his great 

 surprise that there 

 were tufts of white 

 hair on t lie left side of his head. The loss of 

 color was complete from the roots to the 

 enilsof tiie hairsand the longest hairs were 

 just as white as the shortest. There was 

 not a brown hair amidst them. The gray 

 hairs were solidly implanted and could 

 be pulled out only by considerable force. 

 Subsequent investigation brought out 

 the fact that the patient's left side of the 

 head and face was most injured by the 

 explosion and the fall of earth. He also 

 sulfered from an incessant twitching of 

 the left eyelid. As his hair was whitened 

 solely on the left side the physicians 

 came to the conclusion that the injuries 

 sustained were directly responsible, but 

 they arrived at no definite conclusion. 

 In fact, science has yet to find a. cause 

 for the sudden turning gray of the hair. 



