26, Number of persons departing for coast towns on small sailing vessels (steerage passengers) --------------------1, 036 Immigration for the month, foreign ports: Cabin passengers ------------------- ------- 298 Steerage passengers ----------- ---------- 1, 853 2, 151 From coast towns on small sailing vessels: Steerage passengers -------------------- -------- 468 Total immigration ---------------------------- 2,619 Number of certificates issued to outgoing passengers- --. ---193 Excess of immigration over emigration ... -------------- 333 During the month the construction of the detention barracks at Colon was started, and minor improvements have been made around the detention house at Panama. SANITATION IN ZONE. Work has been carried on at twenty-two different points in the Zone between La Boca and Gatun; draining, ditching, filling, cutting and cleaning brush and grass, collecting and disposing of garbage and night soil, fumigating, street cleaning, covering and oiling water containers, digging night-soil pits, building water-closets, etc. Especial effort is being made to complete drainage work and to abolish all breeding places of mosquitoes before the rainy season sets in. Work done is as follows: LA BOCA. Brush cut and cleared ---------------square yards-- 60, 945 Old ditches cleaned and graded ---- linear feet- 4,040 Night-soil pails emptied ------------------- number. 48 Garbage cans emptied --------------------do --- 3930 Night-soil pits dug----------------------------------- 6 Closets constructed --------------------------------ANCON. Brush cut and cleared -------------- square yards - 232 Grass cut and burned --------------------- do---- 514 New ditch dug ----------------------linear feet 96 Night-soil pails emptied -----------------number 279 Houses fumigated ------------------ I ------------ do-.---, (Ward No. 11, and annex, Ancon Hospital.) (Cubic measurements, 42,720 feet.)