Charles G. Torre
This is an introduction to classical field theory. Topics treated include: Klein-Gordon field, electromagnetic field, scalar electrodynamics, Dirac field, Yang-Mills field, gravitational field, Noether theorems relating symmetries and conservation laws, spontaneous symmetry breaking, Lagrangian and Hamiltonian formalisms.
János M. Bak
A practical guide on the editing of medieval--mainly Latin--manuscripts for editors and users of MSS. It discusses basic issues of textual and manuscript transmission and contains guidelines for the description and textual analysis of manuscripts, the emendation and editing of texts, and a chapter on questions of translation and bi-lingual editions.
An updated and revised version is available in paperback from Gorgias Press: https://www.gorgiaspress.com/introduction-to-working-with-manuscripts-for-medievalists
P. S.G. Watson and A. F. Baker