Note 4 — Letter from Father José Maria Clotet to the Reverend Father Rector of the Ateneo Municipal
Reading edition
The Xanthostemon verdugonianus—Naves, of the family of Myrtaceæ, allied to the Iron wood of Java. It is found in Luzón and Mindanao, and is a hard, heavy wood, exceedingly difficult to work. See Important Philippine Woods (Manila, 1901), pp. 65, 66.