596 



Popular Science Monthly 



warning: 



THIS Street WiuBcPAviti 



«H«r C—pHtiiiii w wmite to C a' 



(^.HlftjH.')'^* 



"WARNING" sign about three by four 

 feet is erected on temporary standards 

 about a street block apart along the 

 thoroughfares which are to be improved, 

 and as far in advance of actual paving 

 work as is possible. These signs are 

 painted in large white letters on a bright 

 red background as follows: 



WARNING! 



This warning is placed on all streets to be 

 paved, as far in advance of the work as p>ossible 



How Baltimore Protects Newly Paved 

 Streets and Saves Time and Trouble 



THIS STREET WILL BE PAVED! 

 All underground structures, gas and 

 water pipes, etc., must be put in at once 



After completion, no permits to cut 

 will be granted for five years. 



James H. Preston, Mayor. 



By the strict enforcement of this regula- 

 tion, city officials have convinced contrac- 

 tors that they are in earnest in their 

 determination to make one cutting up of a 

 street the limit for necessary installations. 



BALTIMORE, Maryland, 

 and proven entirely 

 practical a system which 

 reduces the number of 

 "cuts"instreetsand which 

 has eliminated the 

 tearing up of new pave- 

 ments for the laying of 

 gas and water mains or 

 services, sewer pipes, con- 

 duits and the like at 

 different times. 



1st. A list of streets 

 to be improved is adver- 

 tised in the daily papers 

 four times within a period 

 of six weeks. 



2nd. This list is sent 

 to all city departments 

 and to all public service 

 corporations operating 

 within the city limits. 



3rd. A printed form 

 notice is served on each 

 owner or leaseholder of 

 property abutting on 

 streets to be paved. This 

 form contains some good 

 advice on "Before," "Dur- 

 ing" and "After" paving 

 operations. 



4th. A conspicuous 



potatoes. 



Quartering Potatoes for Seed with a 

 New Double-Blade Cutter 



has adopted TJ^VERYBODY knows that potatoes 

 JIL/ grow from the "eyes" cut from other 

 But only a farmer knows how to 

 ut the eyes so that the largest 

 nd healthiest potatoes are ob- 

 tained. Even he can stand 

 improvement in his methods 

 of cutting. Nine farmers out 

 of ten use an ordinary single- 

 blade "potato" knife. But 

 the cutter shown in the 

 photograph will double, and 

 even treble, the speed of 

 cutting. 



This cutter has a double- 

 edged blade held verti- 

 cally in front of the opera- 

 tor. With the horizontal 

 guide below it, the blade 

 is securely held in position 

 by steel bracing which is 

 attached to the iron board 

 upon which the operator 

 sits. A potato is taken in 

 both hands and pushed 

 sharply against one of the 

 edges of the knife. The 

 smaller of the severed 

 pieces is dropped into the 

 ^:.^Tt£t^^T^& basket, while the rest is 



halves the potato, and the puUed back agamst the 



backward stroke quarters it Other blade,tobecut again. 



