Transactions of the Michigan State Medical Society for the Year 1884

C. E. W.
1884 Journal of the American Medical Association (JAMA)  
long, and can be dilated at the points by means of the screw. When closed, the instrument is round the entire length, the diameter at the outlet is one inch. Each blade has a slot three-fifths of an inch wide, and two and three-quarter inches long. These
doi:10.1001/jama.1884.02390730026013 fatcat:n5knogwfdjdf3jvqxoms7hdely