“…The authors conclude that the presence of baryte could help in the search for the source of the Stonehenge Altar Stone (Bevins et al ., 2022). The final article, by Alice Tavares, M. Clara F. Magalhães, Rosário Soares and Aníbal Costa, on ‘Characterisation of salts progression in walls of earthen architecture heritage' combines the information obtained from laboratory tests with those carried out in situ in a house containing two types of earthen construction - adobe masonry walls and formed masonry walls – to characterise the conditions for the appearance and phase transition of thénardite (Na 2 SO 4 ) and mirabilite (Na 2 SO 4 ⋅10H 2 O), and determine how to prevent progression of salt effects in the two types of earthen construction, to support future recommendations for building conservation, based on the identification of environmental conditions relevant to their occurrence (Tavares et al ., 2022).…”