Patt marble, 
and risers. 
STATE GEOLOGIST. 
49 
The Buckeye Portland Cement Company print a useful table show- 
ing various data in reference to plastering cisterns, which table is here in- 
serted : 
4 
TABLE 17. 
Showing Capacity, Quantities of Excavation, Stone and Brick Lining and 
Plastering in Cisterns of various diameters, for each foot of depth. 
Also number of bricks and amount of plastering in bottom. 
| For Hach Foot Depth. Bottom. 
4 | oe ee 
Sa ort For these Columns Use Diameter ye SS oo 
43 em. | Pag in Clear of Lining. Ke) oe SE 
3 a fy ee BS aa 
% oO | BOs Po eee 
ie +5 S ; bert | Nn D by Z 
8 ae 88 ges eee Se ie Een 
® oe oF aS. | -agg aE Bid oo 
q & & Ae eee) tetera Be “2S Sos 
Shea ac oars as JOO 1) Beis eH ERE OS 
A & 6 ane AES ae fafa aA z 
5 146 7 75 230 1.74 148 2.18 
6 211 1.04 .88 275 2.09 215 3.14 
fa 288 1.42 1.00 320) 2.44 292 4.27 
8 307 1.86 1.13 365 2.09 382 5.98 
8) jh GENK 2.36 1.26 410 3.14 483 7.06 
1 Be 2 91 1.38 460 3.49 596 8.72 
lil | WMO ea he en 500 3.84 722 | 10.56 
12 | 846 4.19 1.63 50 4.19 859 12.56 
ay OR AL) a) 590 | 4,54 1008 14.74 
ee pele eeu OMe SS ue O4 Ora e |i 4 189 ILO ee rel 
OMe eS onl Ged | | P BRA 
680 
1343 
For the number of hundred pounds of cement needed for a half inch plaster coat. 
divide the square yards by 15 if half cement and half sand or’5if a third cement and 
two-thirds sand. 
CONCRETE MOLDINGS AND BASE-BOARDS. 
In the Alexian Brothers’ Hospital, Chicago, * marble concrete, called 
5) 
is used for the floors, base moldings and stairway treads 
No wood or plaster was used within 6 inches of the floors. 
All base moldings were made continuous around corners and at door 
openings. All exposed angles were rounded and the marble surfaces 
polished. | | 
The tread and riser for each step was made in one piece. 
The foot of 
each riser was recessed into the top of the next lower tread so as to make 
but one tightly fitting joint for each step. Figure 5 shows the method of 
construction. 
buildings, but especially those used for hospital purposes. 
*Hng. Record, Feb. 3, 1900. 
4—S. G. 
Such sanitary construction should be a part of all public 
: 
