Chicago : Engineering and Contracting Pub. Co. · leaf 52
Q 1 IZ I 2 I 2/ 6\ 2 73\ZJ6\3/3 \Z9£\ of Material It shall range in size from Vi in. to W2 ins. indiameter. Care should be taken that the gravelshall range uniformly between these sizes. Allgravel will be rejected which shows an undueproportion of fine gravel on the one hand, or be shod with a…
Buildings
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