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24. Walter Richard Wheeler 

Hartgen Archeological Associates, Inc., Rensselaer, NY, USA 

 Online paper: Post-Colonial New World Dutch Framing Innovations and the Development of  the Balloon Frame

 Abstract: Paper traces the transmission of Dutch house-framing techniques in the US as a precursor of the later development of the balloon frame. The balloon frame with its small section timbers and nailed joints was the product of newly machine sawn timbers and the production of cheap nails in the 19th century, but as Walter shows, small section timbers had been used in framing much earlier



25. Giuseppe Mazzone 

University of Notre Dame, Indiana, USA 

 Online paper: The rise of Stereotomy. The evolution of geometric applications in architecture from the Renaissance to the Baroque in France and Italy


 Abstract: The paper provides an introduction stonecutting and stereotomy in the works of De L’Orme and Guarini, 



26. James W.P. Campbell

Department of Architecture, University of Cambridge, UK 

 Online paper: The Significance of John Theophilus Desaguliers’s Course of Experimental Philosophy to the History of Hydraulics and what it reveals about the First Pump-driven Fountains


 Abstract: This explores the work of John Theophilus Desaguliers, an 198th century British writer whose publications give the very first description of pumped fountains 



27. Mike Chrimes

Institution of Civil Engineers Panel for Historical Engineering Works 

 Online paper: Jesse Hartley in 1797: evidence on the making of the Liverpool Docks Engineer


 Abstract: The paper examines a new piece of evidence on the life of Jesse Hartley (1780-1860), the engineer of the Liverpool Docks. Hartley’s papers were burned after his death but there are a few chance survivals. This paper looks at a diary from 1797, which contains the appointments for the young trainee engineer and gives an idea of his movements. Chrimes compares this to other sources and diaries of the period.



28. Estefanía Herrero-Garcia 

Architect, Sociedad Española de Historia de la Construccio. 

Ignacio-Javier Gil-Crespo 

PhD Architect, Sociedad Española de Historia de la Construcción 

 Online paper: Industrial technology and brick vaults construction in Spain, 18th century: The Royal Glass Factory in La Granja


 Abstract: This paper looks at the Royal Glass Factory in San Ildefonso in Segovia in Spain, a monumental 18th century complex in the ground of the palace built as a showpiece whose layout was strongly reminiscent of a monastery with the main space mimicking a church with a central brick dome over the main furnace and glass-making happening in the barrel-vaulted nave-like space off it, all constructed with the aim of being as fire-proof as possible. 



29. Lia Romano 

Department of Architecture, Università degli Studi di Napoli Federico II 

 Online paper: Fighting fires. Jean-Far Eustache de Saint-Far’s contribution to the debate on fireproof constructions in France at the end of the eighteenth century


 Abstract: Looks at the contribution of the artist-engineer Jean Far Eustach de Saint-Fer (1746-1828) to the debate on the construction of fire proof floors and the promotion of the use of hollow clay pots