A Simple Chloroform Dropper.

"HANSGEN" amber bottle for the Wachter chloroform dropper.

The Rohrig dropper device for ether or chloroform.

Practicing later as an eye-ear-nose-throat, or EENT, surgeon, John George Rohrig (1883–1933) received his medical doctorate from the University of Iowa in 1909. That same year, he reported his design for a dropper can (left) for ether or chloroform. The large-diameter screw cap allowed rapid reloading of the can with liquid anesthetic. A conical valve permitted finger-control of continuous drop...

A "pin" Eye-dropper.

1. CL'ARKE, E.-Ophthal. Rev., Vol. XIII, p. 345, London, 1894. 2. SORSBY, A.-Brit. Med. JI., Vol. II, p. 730, 1933. 3. SORSBY, A.-London County Council, Annual Report for 1935, Vol. IV, iii, p. 55. 4. Defective Vision in School Children, Report of the Committee of Enquiry. Great Britain Board of Education. His Majesty's Stationery Office, 1931. 5. MCILROY, J. H.-London County Council Annual Rep...

Chloroform

It was perhaps fitting that Lieut.-Colonel Edward Lawrie, should signalise the year of his retirement from the post of R,esidenc\r Surgeon at Hyderabad by the publication of a volume on Chloroform, a subject with which he has been identified for many years past, and in defence of his views on which, and those of his master Syme, he has fought non sine gloria for many }7ears. The introduction to...

Chloroform