72 The Horticulturist' s Rule- Book. 



Concrete, etc. (for Walks), continued. 



avoid the round or washed gravel, particularly that lying 

 in the beds of streams, for it will not pack. One part of 

 clean clay to 4 or 5 of gravel makes a good walk. Or the 

 following may be used : 



1. One part mineral pitch, i part resin, 7 parts chalk 

 and 2 parts coarse sand. Boil together, and lay it while 

 in a hot state, adding a little gravel. 



2. Boil for a short time 18 parts of mineral pitch and 

 18 parts of resin in an iron kettle ; then add 60 parts of 

 coarse sand ; mix well, and lay it on the path to the thick- 

 ness of i in.; then sift a little fine gravel over it, and beat 

 it down before the cement sets. 



3. Put down a coat of tar and sift some road sand or 

 coal ashes over it very thickly. When this is dry repeat 

 the operation until you have 4 coats of tar and as many of 

 coal ashes or road sand. 



4. Two parts of thoroughly dried sand, i part cinders, 

 thoroughly dried. Mix together ; then spread the sand and 

 cinders on the ground and make a hole in the center, into 

 which pour boiling hot tar and mix to a stiff paste ; then 

 spread on the walk, beat and roll. 



5. Two parts lime rubbish and i part coal ashes, both 

 very dry and finely sifted ; in the middle of the heap make 

 a hole ; into this pour boiling hot coal tar ; mix to a stiff 

 mortar and spread on the ground 2 or 3 in. thick. The 

 ground should be dry and beaten well. Cover with coarse 

 sand ; when cold, roll well. 



3. Paints and Protective Compounds. 



HOME-MADE WASHES FOR FENCES AND OUT-BUILDINGS 

 may be made by various combinations of lime and grease. 

 The following are good formulas : 



1. Slake fresh quick-lime in water, and thin it to a paste 

 or paint with skim-milk. The addition of 2 or 3 handfuls 

 of salt to a pail of the wash is beneficial. 



2. 2 qts. skim-milk, 8 ozs. of fresh slaked lime, 6 ozs. 

 of boiled linseed oil and 2 oz. of white pitch, dissolved in 



