Problem: Add spaces: Ithinkthisgoesbacktothe1980s,whenallofthiswastrue.Xorax,axwasfasterthansettingaxto0.

Spaces added: I think this goes back to the 1980s, when all of this was true. Xor ax,ax was faster than setting ax to 0.

Problem: Add spaces: thepriests,andtheremainingproductswenttosupporthisownfamily.

Spaces added: the priests, and the remaining products went to support his own family.

Problem: Add spaces: Ofthelifeonboardandonshorehislettersgivesomeidea.CaptainFitz-Roywasastrictofficer,andmadehimselfthoroughlyrespectedbothbyofficersandmen.

Spaces added: Of the life on board and on shore his letters give some idea. Captain Fitz-Roy was a strict officer, and made himself thoroughly respected both by officers and men.

Problem: Add spaces: 17Mydisobedienceissealedupinabag.Youfastenupmyiniquity.

Spaces added:
17 My disobedience is sealed up in a bag.You fasten up my iniquity.