28 PHILIPPINE AGRICULTURAL REVIEW. 



old cultivated citrus fruits and their value as stocks under vari- 

 ous soil conditions would of course require the labor and close 

 observations of many years. 



The calamondin is quite drought resistant and would prob- 

 ably dwarf the scion. One year old buds of the pomelo, lime, 

 mandarin and orange at Lamao have made satisfactory growth, 

 the buds taking without difficulty. The cabuyao is a very vig- 

 orous tree and is also drought resistant. It has recently been 

 budded with the cultivated citrus fruits, the buds "taking" very 

 well. The orange has been budded on the alsem, resulting in 

 a good growth, being now (December, 1914) nine months old. 

 During the trip to Bohol in May, the limao, growing in a coraline 

 lime-stone formation overlaid with a little humus, the exact 

 counterpart of the Bahama Islands or the "hammock lands" 

 in southeast Florida, impressed the writer as one of the best 

 examples of drought resistance among citrus fruits under such 

 conditions. The talamisan also appeared quite drought resist- 

 ant, and is furthermore of value as a live fence because of its 

 large spines. 



The "limon real" is of great vigor and hence may be a de- 

 sirable stock for certain varieties and under certain conditions. 



