At 538, interior, same street, 4 rats were smoked out and killed. At 546 same street 4 rats were smoked out and killed. At 715 San Bernardo dead rat found in a hole. Nest made of banana leaves and rags. At 627, interior, Zacateros, 9 rats were smoked out and killed. At 669 Benavides 6 rats were smoked out of four runs and were caught. At 631 Zacateros 2 rats were smoked out and killed. At 417, interior, Misericordia, 4 rats were secured in two holes under a tile floor. Many rats were caught at this number (interior) in traps. At 221 Espelita 7 rats were found in a nest made of palm leaves and excelsior; location of run way and nest beneath tile floor. At 124 Tetuan, in a nest of straw and lint, 5 rats were caught by hand, alive. At 415 T. Alonso one live rat and 3 dead ones were dug out from beneath a tile floor. SAMPOLOC DISTRICT At 1001 Bilibid Viejo there were 5 rat runs, in a Chinese store. Eight rats were secured in a nest under the cement floor. Nest made of straw and paper. At 928 San Sebastian there were 8 rat runs. In one of them there were caught 8 rats. The nest was made of straw. At the same address, later, 3 rats were caught in another run and 8 young rats, with eyes still unopened, were found in a nest of straw. A supply of bread was on hand in this nest. At 629 Tanduay 20 rats and nests of straw and paper were found. At the same address upon another day another rat run was found and one large rat and 16 small ones were taken from a nest made of rags, straw, and fibres. PACO DISTRICT At 1115 San Andres in a Chinese tienda (food store), a long rat run and a nest of rags, straw, and paper, and 30 small rats were found. One nest in a bamboo tree 30 feet above ground was found. Rats had been observed going up the tree and one was caught at the foot of the tree in a trap. SAMPOLOC DISTRICT At 629 Tanduay 14 young rats and a nest of straw, paper and rags were found in a stable. Same address, later, one rat run and nest of straw and rags with one large rat and 16 small ones were found. TONDO DISTRICT March 27, 1913, one rat was caught alive inside of a bamboo timber in house at 51, interior, Pesqueria. At 631 Azcarraga 4 young rats were found in a nest of paper, leaves, and hay. Chicken bones, crab shells, and rice were present in the nest. A young python was caught in a lumber yard in the Santa Cruz District in June, 1913. In his stomach was found a half-grown rat. Another snake was caught in a rat trap at the same address about the same time. PLAN FOR HOUSEHOLD RAT DESTRUCTION.--The following plan for household rat destruction was proposed by me to the Director of Health. It is considered worthy of trial if rat plague appears in new districts. Proposal for periodic household rat poisoning in Manila.