Recolonization of mortars by endolithic organisms on the walls of San Roque church in Campeche (Mexico): A case of tertiary bioreceptivity

San Roque church (Campeche, Mexico) was built at the end of the 17th century with a micritic limestone and lime mortar in baroque style. In 2005 the church exhibited heavy biodeterioration associated with the development of extensive dark green phototrophic-based biofilms. Several cyanobacteria belonging to the order Chroococcales and lichenized fungi (Toninia nordlandica, Lobaria quercizans, Lecanora subcarnea, Cystocoleus ebeneus) were predominant in the dark biofilm samples, as revealed by DNA-based molecular techniques. In 2009, a cleaning and restoration intervention was adopted; however, after few months, microbial recolonization started to be noticeable on the painted church walls, representing an early phototrophic-based recolonization. According to molecular analysis, scanning electron microscopy observations and digital image analysis of cross sections, new phototrophic-based colonization, composed of cyanobacteria and bryophytes, developed mainly beneath the restored mortars. The intrinsic properties of the mortars, the tropical climate of Campeche and the absence of a biocide treatment in the restoration protocol influenced the recolonization of the church façades and enhanced the overall rate of deterioration in a short-term period.

Subsidence damage assessment of a Gothic church using differential interferometry and field data

The Santas Justa and Rufina Gothic church (fourteenth century) has suffered several physical, mechanical, chemical, and biochemical types of pathologies along its history: rock alveolization, efflorescence, biological activity, and capillary ascent of groundwater. However, during the last two decades, a new phenomenon has seriously affected the church: ground subsidence caused by aquifer overexploitation. Subsidence is a process that affects the whole Vega Baja of the Segura River basin and consists of gradual sinking in the ground surface caused by soil consolidation due to a pore pressure decrease. This phenomenon has been studied by differential synthetic aperture radar interferometry techniques, which illustrate settlements up to 100 mm for the 1993–2009 period for the whole Orihuela city. Although no differential synthetic aperture radar interferometry information is available for the church due to the loss of interferometric coherence, the spatial analysis of nearby deformation combined with fieldwork has advanced the current understanding on the mechanisms that affect the Santas Justa and Rufina church. These results show the potential interest and the limitations of using this remote sensing technique as a complementary tool for the forensic analysis of building structures.

Letters from John Hubbard Church to William Jenks, 1795-1798

John Hubbard Church wrote these twelve letters to his friend and classmate William Jenks between 1795 and 1798. Church wrote the letters from Boston, Rutland, Cambridge, and Chatham in Massachusetts and from Somers, Connecticut; they were sent to Jenks in Cambridge and Boston, where for a time he worked as an usher in Mr. Vinall's school and Mr. Webb's school. Church's letters touch on various subjects, ranging from his increased interest in theology and his theological studies under Charles Backus to his seasickness during a sailing voyage to Cape Cod. Church also informs Jenks of what he is reading, including works by John Locke, P. Brydone, James Beattie, John Gillies, Plutarch, and Alexander Pope. He describes his work teaching that children of the Sears family in Chatham, Massachusetts, where he appears to have spent a significant amount of time between 1795 and 1797. Church's letters are at times very personal, and he often expresses great affection for Jenks and their friendship.

A proof of Jesus Christ's being the ancient promised Messiah: a sermon preached in the Chapel of Harvard College at Cambridge in New England, June 23, 1756

The hand-sewn notebook contains a 24-page manuscript draft of the second Dudleian lecture, delivered by John Barnard on June 23, 1756. The copy includes a small number of edits and struck-out words adopted in the printed version published by J. Draper of Boston in 1756. The sermon begins with the Biblical text Mark 14:61, 62. The covers are no longer with the item.

Popery a complex falsehood: or an attempt to clear and evidence, that it is so, in a lecture had at Harvard College in Cambridge, New England, on May 10th, 1769

The hand-sewn notebook contains a 30-page manuscript draft of the Dudleian lecture delivered by Samuel Mather on May 10, 1769 at Harvard College. The sermon begins with the Biblical text 2 Thess. 11:11, 12. The copy includes a small number of edits and struck-out words. The item has unattached pages and is in fragile condition. The lecture was never published.

Built in Jerusalem's Wall /

Mode of access: Internet.

Church music,

Mode of access: Internet.

A calm inquiry into all the objections made to the educational provisions of the factory bill, exhibiting the nature, tendency and object of the new principles by which the dissenting bodies stand opposed thereto.

Mode of access: Internet.

Methodism and literature; a series of articles from several writers on the literary enterprise and achievements of the Methodist Episcopal Church.

Includes index.

A new solution ... of the elementary education controversy together with a table of educational changes in England since A.D. 1547,

Mode of access: Internet.

Journal of a tour in the "Indian territory," : performed by order of the Domestic Committee of the Board of Missions of the Protestant Episcopal Church, in the spring of 1844, by their secretary and general agent.

Disbound Original Held in Oak Street Library Facility.

The origin and development of early Christian church architecture.

Bibliography: p. 143-147.