21. Some perhydrophenanathrenecarboxylic acid derivatives

Sodium Pentothal Anaesthesia for Breech Delivery

“…In some of these cases of delay, forceps were required for the aftercoming head and the advantages of this method of delivery were discovered to be so great that forceps are now applied to thc aftercoming head in all primigravidae. Baxter (1949) has shown that in an extended breech, if the head remains flexed, the diameter of thc head passing through the pelvis i s iinlikely to be large enough to cause any trouble. This is confirmed by the fact that, in many cases of breech presentation, the de'ivery of the head is almost precjpi-SODIUM PENTOTHAL AKAESTHESIR POR BREECH DELIVERY 235 tate, and yet some of these babies are stillborn and die from intracranial haemorrhage.…”

Diene Reactions with Dicyclohexenyl

“…4-Methyl-l, 2-dihydrophenanthrene (XIV) and l-methyl-3,4-dihydrophenanthrene (XV) even at 280°could not be induced to condense with dicyclohexenyl. But a-vinylnaphthalene (21)(22)(23)(24) and dicyclohexenyl (I) at 250°g ave a small yield of an oily adduct which should have formula XVI. This is a hydrogenated 1,2,3,4-dibenzochrysene, a ring system which appears to be unknown so far.…”