Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 842
16XZ3 ZX3 ?6/33 3^46 36X63 4X6 APPENDIX. 789 OT,D FROX ; CEMENT AND TERRA COTTA PIPES NOT WELL-JOINTED NOR IN PERFECTORDER ; WELL LAID BRICKWORK. Grades m feef per hundred /?= 0/3 02 04.06 ./ 2 .3 .4 .6 6 .7 .8.3/.O /.J 2.0 16 3.0 … /6A23 ■x.r z 6 yss 3X^^ 36A63 4X6 6X9 66X83 6X76 46X69 790 APPENDIX. FOUL AND SLIGHTLY TUBERCULATED IRON ; CEMENT AND TERRA COTTA PIPES WITHIMPERFECT JOINTS, AND IN BAD ORDER ; WELL-DRESSED STONEWORK AND SECONDCLASS BRICKWORK. Grades /r? feet per hundred n^.0/6 .0?.mm ./ . ■? -3 -^ .6 .6 .7.8.9/.0…
Mechanical drawing
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