18 SMALLPOX. Although on several recent occasions the European laborers arriving on the Isthmus have sailed from European ports where smallpox is present, and cases have appeared during and immediately after the voyage, yet up to the present time there has been no development of smallpox in the Canal Zone. GENERAL CONDITIONS. The general health conditions of the various camps in the Zone are satisfactory and preparations are more complete than at any previous time to meet the coming rainy season, which starts during April. The attached table is a summary of the routine work accomplished in the Canal Zone during the month: ANOON. Brush cut and removed---------------- square yards- 555, 555 Swamp filled in------------------------------ 166 Grass cut and burned ------------ W -------------- do ,. 40,00 New ditches dug --------------------------- linear feet.. - 1,411 Tile drain laid........ ... .. ..... .- -..-- -..... -do .... 5,208 New ditches stoned-- ---------------------do... 1, 111 Old ditches cleaned ---------------------------- do.... 4, 953 Closet pits dug (1) --------------------------.cubic yards.- 13 Closets erected --------------------------------------- 4 Closets cared for ---------------------------------------- 46 Garbage cans emptied (daily)-------------------------70 Night-soil cans emptied (daily)--,-..-...--------.. 116 Houses disinfected. ----------------------------------- 1I Houses fumigated (1) --------------------- cubicfeet.. -25,200 LA BOCA. Brush cut and removed ....... I-.-square yards. 82, 955 Swamp filled in -------------------------------- do---- 74 New ditches dug ------------------------ linear feet. 508 New ditches stoned and cemented ------------ do-. 250 Old ditches stoned and cemented---------------.do.-. 192 Old ditches cleaned and graded ------------------ do... 2, 700 Closets cared for ................................ ....... 15 Garbage cans emptied (daily)....................... 155 Night-soil cans emptied (daily)---------- --- -.----86 Houses disinfected ------------------------------------ 2 Houses fumigated (1) ---------------------- cubic feet.. 25, 200