Lockjaw seems to develop late. Most of the cases occur after the men have reached the south of France. The new French anti-lockjaw inoculation of Doctor Doyen has produced most remarkable results. I have heard, on reliable authority, that with it 80% of the cases treated make a complete recovery. Three of my personal friends have had lockjaw and recovered. This is, in part, due to the fact that in all the hospitals the diagnosis is quick and sure, and the serum always in stock. The injection is made into the spinal cord at the small of the back. The patient is kept on his back on a slightly sloping table, his feet being at the higher end, while his head is allowed to hang unsupported over the end of the table. A considerable proportion of the French and British troops in France, the Russian, Austrian, and Hungarian troops in the eastern fields, and the prisoners in Germany suffer from lice. Fleas seem to be a comparative rarity in the zones of operation. * * * * * The physique and condition of the French troops have greatly improved since the beginning of the war. War conditions seem to have caused a marked change. Many of the men have gained twenty and even thirty pounds, and the younger men have grown inches in height. The French have well-defined regulations in the matter of sanitation, but these rules are not generally well-observed or strictly enforced. In the French trenches, however, where discipline is best, this matter is very well regulated. The Germans are particularly orderly in this regard. I have never observed that the French mark wells or water supplies in any manner. I have no observations to offer on the subject of cremation of refuse, but have seen several attempts at cremation of bodies in the French army, all of which were glaring failures. AËROPLANES