Many thanks indeed to Alex Hill, and also Dave Burleigh for posting.
ent: 17/02/2017 19:33:23 GMT Standard Time
Subj: Spanish version of Chapter 4 of ECE2 book
I was planning to send you a chapters 1 to 4 of the Spanish version of the ECE2 book, but it seems to be too heavy to be emailed by Yahoo.
Therefore, I hope you can attach it to the 1 to 3 file you have already posted with little trouble.