CONCHETE AND MOBTAB CUBES.
600
Tests of cubes 1 and 2 years old, continued from Report of 1899, page. 783. Cubes set in air in a dry, cool building.	Remarks.			
	Ultimate strength.	Per Total, square inch.		teil pßßßA iSiSsilS 11111 lisas io cococo'coin co r-Tr-Tr-Tof oa <N Ot (M t-Tt-Tr-Tr-T r-T r-Tr-T 5imi !lini limili imi imi f §¥§¥ lililí ISÍSÍiíl llííí a"§Ss"®"
	First crack.		limi !siili umili um mu lifgil liaSlI istillili alili sïSI״'	
		3!	|gg£ss sssggsg agggsssgs ggsss sagas 132232 322222 22222222 22222 22222 ־»	
	Dimensions.	Ii i3	Jggögg Ságggg ggsggggg SSöSS Ögggs |sssss sáásaa aasssass sssss sansa	
				ggggg SSSSSS gggggggs gsggg Sgggg sanad aaaaas asasaass aaaaa aaaaa
		I «	í	sfeggg sagggg ss3ss8ss sassa sgggg nnnnn ananas sassssss sansa sanan
	Weight.	Per cubic foot	í	MtíOtí't)* «DOHHCJ(« NOOOOOOtOMO COH^©© <N O CO 1> 00 222SS 222222 §2“2§ IISIS ISSI!
		Total.	CÔOOOOO ©COCOCOOJOO NOOO^COOCON OOrfCOM Tf<Tí<©Tf<©	
			222222 a״Í¡§ lassa	
	1		1 lililí |||!|¡¡| NN ¡MN	
			Years. 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1	
	Composition.	Broken stone.	!!ni !i!!!! ¿!!Min !!ni tim ini! i : M M ÌN H M ! i!N! Ï M il	
		Sand.	C-J • • • ¡ !N '.'■!! . CO ••••"• • rf< ! ! ! \ io•'•׳ 3־ ! ! I I ! ! ! ! ! J ; ; ; ; ; ; ... 1 ....	
		4	tH ! 1 ! ! rH ! ! ! ! I tH ! ! ! I ! I ! r_l J J J I ,-1 ; ; ; :	
	Brand of cement.		Alpha Portland .. Alpha Portland .. Alpha Portland .. Alpha Portland .. Alpha Portland .. 		
	Marks.		essss giggggsg sSSss Sgasa	
Concrete and Mortar Cubes Made at Watertown Arsenal.