Morphy's Chess Masterpieces by Fred Reinfeld and Andrew Soltis was published in 1974 and is thus probably written in the older, obsolete "Descriptive" notation. Here are pgn's of the 40 games in the book...
https://www.chessgames.com/perl/chesscollection?cid=1012990
As an alternative I suggest considering, a more recent book, written in the modern "Algebraic" notation......
A First Book of Morphy by Frisco del Rosario
https://www.google.com/books/edition/A_First_Book_of_Morphy/zW-DI747l5kC?hl=en&gbpv=1&dq=a+first+book+of+morphy&printsec=frontcover
pgn's of the 69 games in del Rosario's book...
https://www.chessgames.com/perl/chesscollection?cid=1049084
Hi all! I am thinking of getting Morphy's Chess Masterpieces but already have Sergeant's book. Does anybody know if it is still worth getting? I have not seen anything that has what games are posted in Morphy's Chess Masterpieces and the other book has a ton of games in it. I do love Paul Morphy books though, lol, so maybe this is a no-brainer. Any way, thanks!