ircuit around the man-hole. sists of two disks of yielding material having radial grooves lation on the subject of adulteration is deemed desirable. The ari:angement and composition of the four filter beds The committee will endeavor to prepare and place in the in their adjacent faces for conveying… … A Steel Steamliosit lor Venezuela. The pressure between the disks may be easily CHASE'S FOLISHIIfa MACHmE. A steel steamboat in sections was recently sent regulated, and only a few turns of the ma- from this port to Lake Maracaibo, to be used in chine are required to give a knife a fine polish.^…
Improved · Patented · Oil · Novel · Patents · Scientific American · Rubber · Wood working · Steam engine · Sewing machine · Filter bed · Hudson river · American institute · Compressed air · Electric light · Professor watson
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