304 | General Notes. [ March, 
} 
of strength 1: 2000 for four hours. 4. Immersion in a 2 ] 
cent solution of carbolic acid for four hours. (4) Garments which 
would be injured by the above treatment: 1. Exposure to dry 
heat at a temperature of 110° C. (230° Fahr.) for two hours. 2. 
Fumigation with sulphurous acid gas for at least twelve hours, 
the clothing being freely exposed and the gas present in the dis- 
infection chamber in the proportion of 4 volumes per cent. (c) 
Mattresses and blankets soiled by the discharges of the sick: I. 
Destruction by: fire. 2. Exposure to super-heated steam—25 
' lbs. pressure—for one hour (mattresses to be freely opened). 3: 
Immersion in boiling water for one hour. 4. Immersion in solu- 
tion of mercuric chloride and sulphate of copper. ; ; 
Furniture and articles of wood, leather and porcelain, washing, 
several times repeated, with : 1. Solution of mercuric chloride f: 
1000. 2. Solution of chloride of lime, 1 per cent. 3. Solution 
of carbolic acid, 2 per cent. 
For the person.—The hands and general surface of the body of, 
attendants, of the sick and of convalescents at the time`of their 
discharge from the hospital: 1. Solution of chlorinated soda 1 to 
9 of water. 2. Carbolic acid, 2 per cent solution. 3. Mercuric 
chloride 1: 1000; the latter recommended only for the hands 
or for washing away infectious material from a limited area, not 
as a bath for the entire surface of the body. 
For the dead—Envelope the body in a sheet thoroughly satu- 
rated with: 1. Chloride of lime in solution, 4 per cent. 2 Mer- 
curic chloride in solution, 1: 500. 3. Carbolic acid in solution, 
5 per cen 
© Recent InvEsTIGATIONS ON THE RESPIRATORY CENTER.—Ovt 
knowledge of the respiratory center dates from the work of Le 
Gallois, in the early part of this century. He located this center 
in the medulla oblongata, confining it indeed to a very limited por- 
tion of the medulla in the region of the origin of the vagus nerve. 
Flourens repeated Le Gallois’s experiments and localized the cen- 
_ ter. toa small spot in the gray matter at the level of the calamus 
_ Scriptorius which he named the “ncend vital.” Later workers 
_ demonstrated that the respiratory center of the medulla is bilat- 
eral. Longitudinal sections along the middle line of the medulla 
do not prevent the respiratory movements from taking place. No 
part of physiology seems to have been more generally accept 
than the existence of this center in the medulla, though its exact 
| position has always been and is still a matter of controversy. In 
- 1873 Gierke made a thorough investigation of the subject, his 
_ method being to make lessons of different portions of the medu 
as narrowly localized as possible; and after observing the effect 
of his section to harden the medulla and study the lesion by 
Saal 
Sees 
eadhan ai 
