Simple ultrafiltration apparatus.

Simple ultrafiltration apparatus.

All ultrafiltration devices have in common a semipermeable membrane and a means for creating a pressure difference across it. They differ only in the configuration of the membrane, the nature of the force used to create a pressure difference, and the ease with which the environment of the plasma can be controlled so as to simulate physiological conditions. Speed of producing ultrafiltrate provi...

A Simple Anæsthetic Apparatus

In the apparatus about to be described I make no claim to originality in design. It has been my endeavour to find the simplest form of anaesthetic apparatus which could, with slight adaptation, be used with reliability for intra-tracheal, intra-pharyngeal, or intra-nasal induction using ether with air or oxygen. This apparatus has been in constant use for the past 33r years in certain Indian mi...

A Simple Apparatus for Intratracheal Anæsthesia

Surgeon to the Bristol General Hospital.

A Simple Apparatus for Distilling Water

A simple anaesthetic apparatus for small animals.

This apparatus was developed for the anaesthesia of small animals, including infant and adult mice, rats, guinea-pigs, rabbits, and rhesus monkeys. The general layout of the apparatus is shown in the diagram. The apparatus consists of an electric pump which drives air through a two-way tap connected to two tubes in an ether container. One of the tubes reaches well below the surface of the ether...