This section is from "Scientific American Vol II. No. 1", by Munn & Co. Also available from Amazon: Scientific American Science Desk Reference.
"One of our exchange" says one of our exchanges, "came to us this week with four of our editorials not credited." A frivolous complaint. Not a week passes but we find in some of our exchanges from ten to twenty of our editorials; and instead of complaining, we are thankful for being thus complimented.
 
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