116 THE AMERICAN MONTHLY [Apr 
SMALL-POx.—The State of Michigan is pretty well “pep- 
pered”’ with the disease, it now being present in one hun- 
dred and two places, and it has existed, since January 1, 
in one hundred and eighty-two places. 
During the ten years from 1890 to ’99 there occurred in 
Michigan 710 cases of small-pox of which 134 died; a fa- 
tality of about 19 percent. During the single year 1900, 
there occurred 608 cases of small-pox of which 8 died, a 
fatality of a little over 1 per cent. At the close of the 
first quarter of 1901, final reports have been received of 
seventy-seven outbreaks, showing that 500 cases occurred, 
including 7 deaths, a fatality of a little less than one and 
a half per cent. | 
BACTERIOLOGY. 
A CoNnsTANT MICRO-ORGANISM IN SCARLET FEVER.— 
Baginsky and Sommerfeld (Berl. klin. Woch., 1900, No. 
28 u. 29; Manat. fur. Prak. Dermat., Mch., 1901) state 
that in all cases of scarlatinous sore-throat, a prevailing 
streptococcus, sometimes in pure culture, more usually 
together with other cocci, is present. In all their inves- 
tigations of scarlet fever in children a streptococcus was 
found in all the organs, also in the blood and bone-mar- 
row. These micro-organisms appear as a round coccus 
with a single round nucleus, forming a short or long chain, 
It grows in alkaline bouillon, agar, blood-serum, etc. It 
does not liquefy gelatine. It stains slightly with all ani- 
lin stains. Specific characteristics have not yet been as- — 
certained. 
TUBERCLE BACILLI IN BuTTER AND MArearin.—Markl 
( Wiener Klin. Woch,, No. 10, 1901) states that during the 
past five years many investigators have found virulent 
tubercle baciJli in market butter. The qnestion is, what 
percentage of market butter contains bacilli, and what is 
the danger of eating butter ?. Investigators differ wide- 
