tincture of opium.  A fourth part every three or four hours in a cupful of thin gruel.  The belly should be covered with a succession of hot cloths dry; bottles of hot water to the feet, if they can be obtained; constant and small sippings of finely strained gruel, or sago, or tapioca; no spirit, no wine, no fermented liquors, till quite restored.”  The French surgeons now use laudanum and abstain from venesection.  Another recipe is simply repeated draughts of hot water in large quantities.

* * * * *

A subsequent communication to the Medical Gazette is as follows:—­

We have learnt by the last arrivals from St. Petersburgh that one of the most celebrated and intelligent of the physicians in the Russian service has been employed in tracing the progress of the cholera, and the inference at which he has arrived is, that the disease is propagated exclusively by contagion, and not in any degree by atmospherical influence.  In the spring of 1830 it appeared at Corason, the residence of Abbas Mirza, in Persia, where several of the Russian mission died of it, and Prince Dolgonrowky, the minister, narrowly escaped after a severe attack.  In July it broke out in the Russian province of Schirvan and Bacon; whence it found its way by land to Tifflis, and by sea, from the port of Bacon to Astracan.  In these towns it made its appearance nearly at the same time, viz. about July 20th.  No precautions were taken, and it extended rapidly throughout Georgia, always following the course of the principal roads; and in no instance did it appear in any village, or in houses, unless individuals from the infected towns visited them.  A Moravian village almost in the immediate line of road, thus entirely escaped, while the disease raged around it.  Alarm having been excited at Bacon, many persons fled along the Volga, and carried the disease with them, which appeared at Jondayersk on the 22nd of July; at Krasnoyar on the 25th; at Tzarilzin on the 6th of August; Donbooka and Saratoff on the 7th; at Khvalnisk on the 19th; Novogorod on the 27th; Koshoma on the 3rd of September; Yaroslaff 6th; and at Rybinsk on the 10th.  In all these places, the first victims were navigators of the Volga, or others arrived from places where it already raged.  A Cossack, sent to buy food at Doubooka, on the Volga, died on 7th, after his return to Katchalinskaia, on the Don; and thence the disease rapidly spread through the Cossack villages.

The first deaths at Novitcherkask, the principal town of the Cossacks, took place on the 18th of August; and at Tagonrog, September 9th.

From Saratoff multitudes of the inhabitants escaped again into Persia, but the disease followed them, and it was carried to Moscow by a student from Saratoff, whose servant had died on the road, and who was himself the first victim in the Russian capital.  All communication was instantly cut off between the military school at Moscow and the rest of the town; not one case of cholera occurred in the establishment.  In no instance was the propagation of the disease traceable to goods; it was dependent on the actual presence of individuals labouring under it.  It never broke out after a quarantine of twenty-one days; and, in the great majority of cases, the attack took place within a week after exposure to the contagion.