BEST LAWN TOOLS AND THEIR USE 121 



come efficient, therefore it is far better to 

 separate the two tools and have the small 

 rollers on the mower merely for the purpose 

 of supporting the rest of the machine. Large 

 driving wheels are an advantage. They give 

 a high gearing and the knives being operated 

 at a high speed cut more evenly and with 

 less pull. When properly adjusted the 

 knives sharpen themselves on the plate, the 

 only care necessary being to keep the machine 

 clean. 



For very large estates the motor combined 

 lawn mower and roller is an engine that should 

 be considered. The thorough and frequent 

 rolling that a lawn will thus receive is a factor 

 of considerable importance in favour of such 

 a machine. They will weigh up to three 

 thousand pounds, and the two operations of 

 rolling and cutting can be conducted at one 

 time without the use of a horse. Such great 

 pressure effectually stamps out crab grass. 



There is always this drawback to the use of 

 a horse on the lawn: that holes will be made 

 by the feet. This is obviated to some extent 

 by the use of lawn horse shoes, contrivances 

 of leather and wood which are tied over the 

 hoofs, thus distributina; the weight over a 



