DAD ANNUAL REPORT 
added io the top of the block and fine sand or siftings of some natural 
stone are sifted over the surface producing the natural stone appearance. 
The form of the block, as shown in figure 149, affords an excel- 
lent means of handling the stone upon the wall. The company claim to do 
the work for the following prices, quoting from Dykema’s “Stone Making.” 
Cost of Stone.—‘Figures here given are from actual experience and 
based on the labor of men mixing by hand, and on the cost of labor and 
material in Grand Rapids. 
The 12 inch stone lays 1.35 square feet in the wall, including a 
'% inch mortar joint. This is equal to 30 bricks. One man can make 4o 
to 50 of these stone in a day, doing all the labor of setting up the mold, 
nuxing the material and finishing the stone. With “correct concrete” 40 
of these stones can be made from one barre! of Portland cement. Based 
on a day’s work for one man a 12 inch stone figures as follows: 
Dis Oka) eae pare rire AAR IM NAAT tn ER PT rg a RU ee ls lcs $0.04 
Cement, 40 stone to the barrel, at $1.50 per bbl.. 0.03% 
Gravel: andssan Geers ies errs oa an ge a re ae 0.03 
TO tals Hee aye BON eS ti RN eae NS IE $0 .10%4 
This is equal to $3.58 per 1,000 for brick. The 10 inch stone lays the 
same surface in the wall, to inches thick. The cost is as follows: 
abort a. GS Rae ghee, AC cbt ga ait rag Tanthtea cas ha RTE Nef ae ah aU $0.0314 
COMO M Dias ioaev an tomy oop eee ea tet opm age DS REM ea .03 
Gravelandisan decks <% Pesce otitee ee henesie eo ne eee 02% 
"POLAT Avs Pes re coke cece rae ne foseg a a teas aera $0.09 
These stones are sufficiently strong to replace any work which would 
otherwise be built of 12 inch brick walls.” 
° Fig. 146.—The Dykema Block Mold. 
