The use of the superior longitudinal sinus to obtain blood for examination and as a path for intravenous injections is attended with many advantages. These advantages are readily appreciated and are emphasized in a number of recent papers. The first to use this vessel was Marfan,1 in 1898, for the introduction of salt solution in a case of cholera infantum. Nothing further appeared in the literature regarding its use until 1915, when Tobler2 studied the anatomic relations of the sinus for this purpose. While sinus therapy is now generally regarded a safe procedure, the fact, however, that the sinus is hidden from view, and that there is danger of infiltration into the brain when injecting fluid, justifies a consideration of technic.
Goldbloom,3 in 1918, devised an apparatus which was an improve ment upon several which preceded it. In March, 1920, he4 describe[ill] a new apparatus in