The Philippine Islands is a monumental 55-volume book by Emma Blair and James Alexander Robertson. It consists of primary source documents for Philippine history translated into English.

Electronic copies of the book in text format from Vol. I to Vol. 25 are available from Project Gutenberg, while scanned copies of the pages for the whole set are available from the University of Michigan Digital Library.

Selected primary sources are linked from here.

Volume I: 1493-1529

• Full Table of Contents
• Papal Bulls of 1493

   

• Treaty of Tordesillas
• Letter of authorization to Falero and Magellan

Volume X: 1597-1599

• Full Table of Contents
• Letter to Felipe II by Antonio Morga 

Volume XI: 1599-1602

• Full Table of Contents
• Letter from the King of Borneo to Governor Tello
• The Pacification of Mindanao
• Letter to the governor, on the battle with the Dutch by Antonio Morga
• Pintados menaced by Mindanao pirates

Volume XII: 1601-1604

• Full Table of Contents

Volume XIII: 1604-1605

• Full Table of Contents

Volume XIV: 1605-1609

• Full Table of Contents

Volume XV: 1609

• Full Table of Contents

Volume XVI: 1609

• Full Table of Contents

Volume XVII: 1609-1616

• Full Table of Contents
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