viu, D. 3 Salt: Carriedo y Peredo 191 



His assistant was at first Eugenio de Otadui, engineer in charge 

 of roads in Bulacan, and, when Otadui was forced by sickness 

 to return to the provinces, Jorge Ponce de Leon. Work was, 

 however, tempoi'arily suspended by the disastrous earthquake 

 of 1863, and it was not until 1868 that Genaro Palacios y Guerra, 

 who was to actualize the desire of Carriedo and serve the city 

 in the capacity, first, of consulting and then of acting city 

 engineer for the next seventeen years, entered upon his duties.'"^ 



At the time of his appointment, Genaro Palacios was employed 

 by the bureau of public works as head of the division of roads, 

 canals, and bridges, and remained in its service on detail until 

 1878, when he became a city official on contract from the munic- 

 ipal board. By November, 1868, he was engaged on the prepara- 

 tion of plans, and in May of the next year he submitted a 

 "proyecto" and an alternative, or "antiproyecto." The "pro- 

 yecto" called for an elaborate system on the Roman plan, to cost 

 2,289,548 pesos and 75 centavos. It provided for the conduction 

 of water for an estimated population of 300,000, in a rectangular 

 stone aqueduct from a point above the town of Montalban, where 

 a high masonry dam was to be built, to a point near the present 

 northeast boundary of Manila. The aqueduct was to be of cross 

 section, 1.5 meters wide by 2 meters high, and was to have a 

 semicircular arched roof.'"* 



It was rejected by the city on the ground of expense, Pala- 

 cios, little discouraged by the unfavorable reception of the orig- 

 inal scheme, promptly expressed his willingness to carry into 

 effect the "antiproyecto," which was to cost only 745,509 pesos 

 and which, with certain additions and modifications, became the 

 Carriedo system as it remained in constant use until 1908."' 

 According to the original plans, 2 pumps of about 15,000 cubic 

 meters combined daily capacity were to be installed at some 

 point in the barrio (village) of Santolan on the Mariquina 

 River. Here the water was to be raised into a rectangular 

 masonry conduit excavated, for the most part, out of adobe "" 

 formation, through two lines of 20-inch cast-iron pipe. This 

 conduit, of external section 1.40 by 1.75 meters, was to be laid 



""Mas y Otzet, Carriedo y sus obras (1882), 61; Actas de Carriedo 

 (Dec. 23, 1868). 



''" Expediente economico relative a la traida de aguas a Manila (April 

 8, May 6, 1862). 



•"•Mas y Otzet,»Carriedo y sus obras (1882), 59-60. 



"'The Spanish term is "toba." (AS "tuff.") Actas de Manila (1877), 

 87; Mas y Otzet, Carriedo y sus obras (1882), 2-3, 71-76; Dieck, Robert 

 P., Water supply of the municipality of Manila. Manuscript (1902), 1-4. 



