. Bulletin of the Department of Agriculture. Agriculture; Agriculture. Only such blocks as are used in loading are taken up here. Some of the blocks listed under this heading, however, are used in over- head and high-lead yarding. Figures 68 and 69 show two of the types of loading blocks. Several other types are used. The proper size of blocks was discussed in a general way under the heading " Ground ; The size to be used with different methods of load- ing is suggested in the discussion headed " ; The cost of loading blocks varies be- cause of differen
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. Only such blocks as are used in loading are taken up here. Some of the blocks listed under this heading, however, are used in over- head and high-lead yarding. Figures 68 and 69 show two of the types of loading blocks. Several other types are used. The proper size of blocks was discussed in a general way under the heading " Ground ; The size to be used with different methods of load- ing is suggested in the discussion headed " ; The cost of loading blocks varies be- cause of difference in the type, size, and make, arid because different materials are used in their construction. The following gives the weight, size, and selling price of two types of loading blocks, f. o. b. Portland in March, 1916. It should be borne in mind that blocks are manufac- tured by several companies and that they can no doubt be purchased as satisfactorily at Tacoma, Seattle, and other points as at Portland. Net price. No. 1 sheaves, 12 by 1| inch manganese steel_ $18 No. 2 sheaves, 14 by li inch manganese steel 22. Fig. 69.—Overhead Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Dept. of Agriculture. [Washington, D. C. ?] : The Dept. : Supt. of Docs. , G. P. O.
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