WORK AGAINST MOSQUITOES IN PANAMA. 
21 
following table of deaths from yellow IVvcr in New Orleans Prom 
L847 to L905 points ou1 most strikingly the value of this antimosquito 
work : 
Table ll. Comparative table of deaths from yellow fever in Vetc Orleans dur 
ing mi ions years. 
Month. 
reai 
1847. 
1848. 
1-.:; 
1854. 
L8 ... 
1- *. 
L867 
May 
2 
31 
1,621 
5, 138 
982 
117 
28 
4 
•> 
29 
632 
1,234 
190 
131 
: 
■"> 
382 
1,286 
-7 1 
•.17 
L9 
7 
■1 
132 
1. IIH 
2,204 
1.1 87 
22 1 
1.". 
1 
S3 
200 
467 
126 
20 
"""22' 
July 
71 
965 
l. LOO 
L98 
12 
10 
1 15 
ll 
1,637 
1,072 
in:; 
26 
26 
l. 780 
I.e.;:. 
117 
8 
Auunsl 
107 
October 
'i 
December 
Months unkiiow n 
Total 
•J,. sot 
872 
7, 848 
2, 425 
2, 070 
4,854 
3,107 
1,046 
460 
The epidemics of is Is, L854, and L855 are least comparable with 
that of 11)05 because they immediately succeeded severe epidemic- to 
which were due very many immunes. 
The population of New Orleans by the United States Census was 
130,565 in L850; 168,675 in 18G0; 191.418 in 1870; 216,090 in 1880, 
and 287,104 in 1900. 
WORK ON THE ISTHMUS OF PANAMA. 
The United States Government has very properly used the services 
of Colonel Grorgas, who was in charge of the eminently successful 
work at Havana, by appointing him chief sanitary officer of the 
Canal Zone during the digging of the canal. Tn 1901 active work was 
begun, and Colonel Gorgas was fortunate in having the services of 
Mr. Le Prince, who had been chief of his mosquito brigades in Havana, 
and therefore was perfectly familiar with antimosquito methods. In 
Panama, as in Havana, the population had depended principally 
upon rain water for domestic purposes, SO that every house had cis- 
terns, water barrels, and such receptacles for catching and storing 
rain water. The city was divided up into small districts with an in- 
spector in charge of each district. This inspector was required to 
cover hi- territory at least twice a week and to make a report upon 
each building with regard to it- condition as to breeding places of 
mosquitoes. All the cisterns, water barrels, and other water recepta- 
cle- in Panama were covered as in Havana, and in the water barrels 
spigots were inserted so that the covers would not have to be taken 
off. Upon first inspection, in March. I.OOO breeding places were 
reported. At the end of October le— than tOO containing larva* 
were recorded. This gives one a fair idea of the consequent rapid 
