▁either ▁to ▁have ▁been ▁copied ▁by ▁John ▁Dav ies ▁or ▁surv ive ▁in ▁variants ▁in ▁other ▁manuscript s . ▁It ▁also ▁contained ▁many ▁pro se ▁and ▁historical ▁texts , ▁including ▁a ▁copy ▁of ▁the ▁La ws ▁of ▁H yw el ▁D da ▁which ▁contained ▁several ▁pass ages ▁found ▁in ▁no ▁other ▁version . ▁Lew ys ▁G lyn ▁C oth i ' s ▁interest ▁in ▁her ald ry ▁was ▁reflected ▁by ▁the ▁inclusion ▁of ▁pedig rees ▁and ▁other ▁gene alog ical ▁and ▁her ald ic ▁materials ▁such ▁as ▁the ▁L ly fr ▁Ar f au , ▁the ▁" Book ▁of ▁Ar ms ", ▁as cribed ▁to ▁a ▁John ▁Tre vor ▁or ▁Johannes ▁de ▁B ado ▁A ure o , ▁who ▁may ▁be ▁one ▁of ▁several ▁historical ▁figures . ▁Not ▁all ▁of ▁the ▁White ▁Book ' s ▁contents ▁had ▁been ▁copied ▁at ▁the ▁time ▁of ▁its ▁destruction ▁and ▁some ▁were ▁irre tr iev ably ▁lost . ▁ ▁Part s ▁of ▁the ▁White ▁Book ▁may ▁be ▁found ▁in ▁the ▁following ▁manuscript s : ▁ ▁Pen iar th ▁MS . ▁ 4 9 , ▁which ▁contains ▁John ▁Dav ies ' ▁trans cript ▁of ▁many ▁of ▁the ▁D af y dd ▁ap ▁G w il ym ▁texts ▁and ▁variant ▁read ings ▁taken ▁from ▁others ▁ ▁Pen iar th ▁MS . ▁ 1 3 4 , ▁including ▁Robert ▁V aug han ' s ▁copies ▁from ▁the ▁White ▁Book ▁of ▁her ald ic ▁materials ▁rel ating ▁to ▁the ▁gent ry ▁of ▁G lam organ ▁Pen iar th ▁MS . ▁