Arthur Keyser: 2 books

Mr. X., whose impressions and mild adventures in the 19th century I have undertaken the task of editing was an officer employed in one of the small States of the Malay Peninsula, which were under the protection of the Colonial Government of the Straits Settlements. These are the tales of his adventures in the jungles of Java.

From Jungle to Java by Arthur Louis Keyser.This book will tell you about the tales of a guy named Mr.X's adventures in the Jungle of Java.