Scientific American Supplement, No. 443, June 28, 1884 by Various
page 7 of 107 (06%)
page 7 of 107 (06%)
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Make the mortar bed large enough to hold the material for one course;
put in unslaked quicklime in proportion to 1 to 20 or 30 of other material; throw into it plenty of water, and don't have that antediluvian idea that you can drown it; put in clean sand and gravel, broken stone, making it thin enough, so that when it is put into boxes the thinner portion will run in, filling all interstices, forming a solid mass. A brick trowel is necessary to work it down alongside the boxing plank. One of the best and easiest things to carry the concrete to the boxes is a railroad wheelbarrow, scooping it in with a scoop shovel. Two courses a week is about as fast as it will be safe to lay up the walls. * * * * * The _Medical Summary_ recommends the external use of buttermilk to ladies who are exposed to tan or freckles. * * * * * WHAT CAUSES PAINT TO BLISTER AND PEEL? HOW TO PREVENT IT. This subject has been treated by many, but out of the numerous ideas that have been brought to bear upon it, the writers have failed to elucidate the question fully, probably owing to the fact that in most |
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