“…In various abdominal affections with ascites the peritoneal biopsy, as was shown by Donohoe, Shnider, and Gorman (1959) and Donohoe, Shnider, Uzer, and Matthews (1962) and Cope and Bernhardt (1963), is a very useful diagnostic procedure. Vim-Silverman, Abrams, and Cope biopsy needles were the instruments employed by these authors, but a new instrument and technique have been derived here for biopsy of the parietal peritoneum in patients with ascites, by which specimens of peritoneal tissue for histological examination can be easily and safely obtained.…”