The activity of Juan Domingo de Zamacola, a priest of Arequipa, appears to have been divided between building and writing. He made considerable and important additions to church edifices in Arequipa, and his written work deals extensively with the affairs of Peru. In a descriptive itinerary from Buenos Aires to Arequipa he gave an account of the towns and the roads on the way. Another work contained an account of the events of the revolutions in the provinces of Peru between 1780 and 1785. He also wrote a “narrative of the earthquake at Arequipa of May 14, 1784,” also a diary of the visit of Bishop Pedro Chávez de la Rosa to the provinces of Tarapacá, Tacna, and Moquegua, containing an abundance of statistical information. Of a similar character was his work on the history and geography of Arequipa, and that on the foundation of the town of San Fernando in the valley of Socaboya. In a lighter vein were his satirical papers against idleness, against “the women who smoke,” against luxury, and against the use of colours on the face. [Sidenote: Segurola’s _Diario_] An enlightening account of one phase of the war known as the rebellion of Tupac Amarú is found in the _Diario de los sucesos del cerco de la ciudad de La Paz en 1781_. It was written by Sebastián de Segurola, a brigadier in the royal army, in command of the forces in La Paz during the siege, and was printed in the first volume of the _Archivo boliviano_ (Paris, 1872). It recounts in a series of daily entries the flight of the Spaniards to La Paz from the neighbouring towns, the fortification of a certain part of the city, the gathering about the city of great bodies of Indians, the gradual diminution of food within the city, the consumption of the bulk of the horses and mules, and even the utilizing of rawhide trunks as food; until finally, after facing famine for months, the besieged saw loyal troops on the heights around the city and were assured of relief. [Sidenote: Career of Segurola]