The morning news. [volume] (Savannah, Ga.) 1887-1900, 1889-06-20

city he was good enough TO show me fresh
drawn drop OF blood containing the para
site in the crescent shape (which is the most
persistent, and 70 explain to me very fully
the lie history Of the organism.
Without entering to deeply into the tech
nlque. II seems that the first tiny speck seen
IN the blood corpuscle is the germ Of the
perfect monad. Here it dwells. as Richard
remarks, somewhat as wesvil in a pea
The blood it affects is the red matter of the
blood which 1t converts into the black pig
ment. While this destructive process is
going. on the mierobe Itself go5s through
series OF changes which end in crescent,
IN the middle of which lie tile stored-up
pigment, and around which may be seen the
family defined colorless outline of the once
perfect blood globule. From this pale rem
nant Of the feast the crescent now shakes
itself free, to go through further stages of
Transition. After first shrink ng slightly,
the crescent assumes an oval form, and
begins to expand until it becomes an en-
larged round body, with the pigment still
in the middle and signs of augmentation
cells forming all round.
This is called the rosette form, and is in
teresting to watch under the microscope,
as the next stages in development are very
rapid. In ten minutes from the first faint
sign of augmentation cluster Of indicated
cells may be seen, with the little dark pig
ments in the middle. Twenty minutes later,
the cells have taken definite and distinct
shape, and in another hour have burst into
free bodies, scattering the pigment granules
in the general disruption. This is the hour
of the fever Gcces, when the patient is in
the agonieS of prostration.
The fagellated forms are exactly the
same as those just described, only with the
addition of the iagella. As the hagella
often become detached and move about in
dependently, and as the complete form has
but a shOrt-ived existence outside the hui
man body, it Is more rarely seen than the
other forms. Its presence in the field is
usually suspected before it comes into Wis
ion, by the general commotion among the
blood globules as it darts to and fro. Some
have one. others have two, three, and some
times four fagella. The length is three or
four times that of the body. They are ex
ceedingly delicate, gently tapering, and
with, in some instances, a knob in the mid
die, or at the end. Their structure is IN
like that of any other organism ever OBJ
served IN the human blood. They have no
| relation whatever with sprilla, micrococci,
or bacteria of other acute human diseases.
All attempts to cultivate these hBmatoZoa
outside the body in nutrient material have
failed; therefore, in the human blood alone
can they be studied.
These observations have been further
confirmed by Dr.. Vandyke Carter, princi
| pal and professor of medicine, Grant col
! lege, Bombay.
To return to the home of paludal fever,
we must not expect to find there, in the
soil, the active and matured forms of life
which have just been described. OF that
part of the life history little is known, but
from the researches of botanical science
we may fairly assume that the spores are
generated in the soil, and in that form find
bair tIa 1crh
the air into the blood of human beings. 1t
is a popular error to suppose that the fever
is caused by a chill. The chill IS that which
determines not that which causes, the
development of the disease.
Subjoined is a classification of the coun-
tries of the world in respect to malaria,
kindly sent to me by Mr. William North.
FIRST cATEGoRY-HIGHEsT DEGREE OF IN
TENsITY.
Glass I.-Senegal; coasts of Gulf of
Guinea; west coast of Africa as far as the
twentieth parallel of south latitude; NADIA
gascar; the Guianas.
Glass II.-India; Cochin China; Ceylon
Afghanistan; Burmah; Siam; the whole of
the Malay and Philippine Archipelago
New Guinea: part of Abyssinia and the
Soudan, and Central America.
Glass III.--East Coast of Africa; Egypt
coast line of Arabia; Mexico; China proper
the BrazllS and Peru.
SECOND CATEGORY.
Glass L-Tripoh; Algeria; Morocco; the
Cape Verde islands, and the GASES of the
Sahara.
Glass IL-Turkey in Europe; Greece;
islands of the Archipelago; Sardinia; Malta
Sicily; parts of Italy.
Glass III.-Roumania; Hungary; Italy;
Corsica; Spain; Portugal; Southern Russia,
and large part of the United States
THIRD CATEGORY.
Southern Sweden; Denmark; Belgium
and Holland; Germany; France; La Plata !;
Chill and the islands of Madeira, Bourbon,
and st. Helena.
FOURTH CATEGORY. NO MALARIA OR IN
SIGNIFICANT.
The British islands; Norway the northern
parts Of Sweden, Finland and Russia; all
North America above the fftieth parallel of
north latitude; Uruguay; the Argentine
Republic and Patagonia; Northern China /;
almost all Siberia and the greater part of
Japan; New Zealand and the southern parts