PIIILTl'PIXE WOODS. 
359 
1 
Weight and specific gravity. — We liave quite a large number of heavy 
woods, altliougli perhaps not so laj'<i:o a proportion as is found in sonic 
other tropical countries. I have classified our woods as very heavy, 
heavy, moderately heavy, and ligiit, following tlie classification used 
by Gardner.^ "We have many woods which when green will sink in wuicr, 
Init the number of these which has a greater specific gravity than water 
when dry is rchitively small. Ulie following table gives a list of Thilip- 
pine and American commercial M'oods, with their weight and specific 
gravity so far as known. 
Tile heavy woods which are itjilici^^ed frequently come into the "very 
'^ class. 
heavy 
Comparative weights of Ph'tlipphie and American VHimh. 
riTILIPPINE WOODS. 
Very heavy. 
Heavy. 
Moilenitely heavy. 
Light. 
Sp.gr., 0,90 or luoro. 
Sp,Kr., 0.70-0,90. 
Sp-gr,,0.r)(M).7O. 
Sp.gr., 0.50 or lew. 
Weigbt.— Metric sys- 
tem, 900 kiU>s or , 
more per cu- m.; 
English system, ^^& 
lbs, or more per 
cu, ft- ; Spanish 
system, 42 ll)s. or 
more per eu. ft. 
WeiKlit.— Metric svs- 
tem, 700-900 kilos 
percu. m.; English 
system, 44-5*; lbs. 
percu. It.; Spanish 
system, 32-42 lbs. 
per cu, ft j 
Weight, — Mi^tri<r svs- 
tern, 500-700 kilos 
per cn,m,: English 
syst<,^ni, 31^4 lbs. 
per cu. It.: Spanish 
system, 23-32 lbs, 
percu- ft, 
i 
Weight.— Metric kvh- 
tem, 500 kilos "or 
less per cu. m.; 
Kiiglish system, ;tl 
lbs. or less per cu. 
ft; Spanish sys- 
tem, 23 lbs. or lesf> 
per cu. ft. 
F 
Mancono.-^ 
Ihiiiffon,^ 
1 
Narra,* 
Lanan.* 
Dufigon-late^ 
IpU^ 
Acle,» 
Baticulin, 
Ebony. 
Molave,* 
Teak,b 
Calantas^ 
CamflRon. 
Faoa/,» 
Gmjo.* 
Mayapis,* 
Bolongeta, 
Tindalo,* 
Apitong-* 
Red Ifluan." 
Biiis.^ 
Amuguis,* 
Dlta-i* 
Bansalatjiihu^ 
Palo maria.^ 
Cupang,* 
Supa.» 1 
Banaba, 
Teluto. 
^ 
Macaflsin> 
Anubing, 
Malapapaya. 
Batitinan.* 
Bancal,^ 
Aranga^ 
TamayuHQ. 
Sasalit^ 
Sacat* 
f 
Liasin,^ 
MahLSJinWl-* 
* 
Tuean-c'ttlao, 
Balacat." 
Alupag- 
Malugay.* 
Catmon,* 
Banuyo.* 
■ 
Agoho,^ 
Tangullc* 1 
Calaman^unuy. 
La n etc*. 
■ 
Mangachapuy,* 
Duguan. 
liatete. 
Sautul,** 
Ijuiotan.* 
Nato- 
Dalinsi. 
n 
Calniupit. 
Talisay.^^ 
IJulinhaNiy, 
Lumbuyao.* 
Bat inc. 
1 
■ The specific gravity af these woods was obtained! from tests made in Mnnila. 
'» These woods were'groupe*! by data found in Gttmble^< Manual of Indian Timbers. 
'liur. For. Hull., Afanihi (1JJ07), 4, ol. 
