Medieval Yorkshire is the publication of the Medieval Section of the YAS.
In its earliest form it was called Sciant Presentes then the name changed to Medieval Yorkshire in 1989. 2014 was the start of Series 2 in A5 format.
Sciant Presentes and Series 1 are available here in pdf format as a free download. Where there are gaps in the numbering there was no publication that year.
Up to 2006 the pdfs are scans of paper copies and so not searchable.
For full details of each issue please look at the section website at http://www.medieval.yas.org.uk