THE original curved Magill endotracheal tube unions, being smooth, tend to slip out of the tube very easily. Being small they 'are often rather fiddling to handle in moments of haste and urgency. The alternative right angle unions of Rowbotham are easier to handle and more secure but have a higher resistance to gas flow owing to turbulence produced at the sharp angle. The later Magill modified unions illustrated are much more satisfactory for oral intubation if suction is not needed (a similar type with provision for suction is available) as they provide a smooth gas flow with a wide bore inlet. They are large enough to handle easily and3 owing to the ridges, endotracheal tubes do not readily slip off. For nasal intubation, however, they do not lie easily along the nose and form an unnecessary lump, which if pressed upon through the towels tends to deform the nose. I have accordingly had a set of these unions made, which have a curve similar to the original small Magill nasal unions. These have an approximate angle of 60° between the inlet and