When Dr. Cecilio Lopez, the first Filipino scientific linguist, died unexpectedly on September 5, 1979 at the age of eighty-one years and seven months, he left behind several manuscripts. Among these manuscripts are a 500-page comparison of Tagalog and Malay, and three articles on Tagalog. The three articles are published posthumously in this special issue of The Archive. 

The first of the three articles of Dr. Lopez in this issue is a short but comprehensive grammar of Tagalog. It is essentially a condensed and updated version of his A Manual of the Philippine National Language (1941). The last two articles are historical studies dealing with some “new” or “unreported” morphemes in Tagalog. The three articles appear here as Dr. Lopez left them with only a few minor changes.