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American Association for the Advancement of Science - p403
doi:10.1038/scientificamerican09061851-403
To Prevent Horses Being Teased by Flies - p403
doi:10.1038/scientificamerican09061851-403a
Improvement in Machinery for Making Pails, &c - p404
doi:10.1038/scientificamerican09061851-404
Short Conversations on Mechanics---No. 5 - pp405 - 406
doi:10.1038/scientificamerican09061851-405c
Salivary Calculus, or Tartar of the Teeth - p406
doi:10.1038/scientificamerican09061851-406