eee 
PROTECTING WOODS AGAINST TERMITES. 3 
Tests were also to be made of untreated native and exotic timbers 
as to their relative resistance to attack by termites. 
In the tests of preservatives for timber to be used in contact with 
the ground, stakes of southern yellow pine, 2 by 4 inches by 2 feet 
long, were placed in holes 3 feet apart and 1 foot deep, the holes being 
dug with a spade, 1 foot of the stake remaining above ground. The 
treatment of the stakes was done by the Forest Service at the Forest 
Products Laboratory, Madison, Wis., and a detailed physical descrip- 
tion of each stake also was made. (Table 1.) 
TABLE 1—Treatment and description of stakes treated for the Bureau of Ento- 
mology by the Forest Products Laboratory of the Forest Service, Madison, 
Wis. 
[Length of stake, 24 inches; length treated, about 17 inches.] 
| 
Num- 
| Weight Ane | ber of Dimen- Banare 
Treatment and stake | Species | before | Weight after as annual Gandiaon sions of of 
No. | of pine. treat- treatment. ae rings z cross ite 
ment. nore per section. | SP 
inch wood 
Open-tank, coal-tar 
creosote (shipment 
No. 154): Pounds. Pounds. Lbs. Inches. 
Shake’ Lass es Shortleaf.| 4.40 4.86 0. 46 Me SOunuds -452 2.10X3.96 | None. 
PA ese Me Meola |b sat dons 3.95 4.57 . 62 Silsesss dosent = 2.063.95 | None 
Sra Sele GOn sae 4.13 5.35 ip? OR See Ghee HE 1.94 4.06 | None 
(CEPA co fal ee adores. 4.20 4.51 eau {Sy {ae Ghose eine 1.94 4.08 | None 
ie ee ees Longleaf.i 4.70 6. 29 1.59 i165, eae do 2.12X4.18 Ze 
(ae bak a Shortleaf.| 4.18 4,54 . 36 Saree doeee2e 1.99X3.97 | None 
hgN ee Be a8 Longleaf.| 4.69 5.74 1.05 aL | eres Gosemters 2.15X 4.15 
Sipe Rea are Shortleaf.| 4.63 eri) 5 iy} 1a does ts 2.084.15 | None 
Gia ts a Longleaf.| 4.71 6.25 1.54 11S | Spee dora 2.15X4.18 1.6 
1 (ae eae Shortleaf.| 4.19 4.77 58 11(0) |e Oe he 2.08 3.82 | None 
RES eet SRA doe nee 4.21 4.58 .37 alee: doraey: 1.924.15 | None 
PAR ees are. hl ire do. 25 3.90 4.17 BPA (2), | eee dos. 42 1.863. 96 il 
Open - tank, wood 
creosote (shipment 
No. 126): 
Stake lg=* 5-2 Faas Gosek 4.86 Selig Bol Whi Sracats Goseia0% 1.98X4.15 | None 
12 eet ee aA dozzse% 3.35 3.69 34 Wales dons 1.833.76 | None 
TUF pert Se Oe beast doveu. 3.65 3.88 Beis i ewes do-a4*. 1.98X3.87 | None 
Rg ea ed Gone 3.79 4.00 Sri Opps “Ge baie 2.02 4.00 | None 
eens ee STC Goss. 4.23 4,48 320 Of parka Obsee ae- 2.04 4.00 | None 
Ups ees ete fetal eae doe Shy) 3.85 . 28 iy eleknG tenes 1.903. 80 | None. 
iI ee ce oD Saal GOW sce 2 3.98 4.29 aol 8 | Slight trace | 2.08x4.06 | None. 
of decay. 
tA pepe ey nal bak COLe as LSA: tase 1.61 13 | Smallknot.| 2.26«4.17 | None 
77) lipases Fl Longleaf.; 3.65 3. 87 a22 fe\soundee 4. 2.09X3.93 | None. 
DD hex ee Le Be Shortleaf. 3.95 4.37 .42 AY |) Pad ea ie see 2.15xX4.13 | None 
OBE US Aes ee pees GOmen cr 3.37 3. 67 . 30 DE SOUNG= see 1.923.78 | None 
FES Ow Ss 2 ae ee COLO ARE ae 3.58 3.94 .36 Oh eeees WOLiaAt.: 1.903.82 | None 
Charred: 
Sint DOT Ee eae ae Sy peer (0a 3. 87 4.08 at SHU knoe. 2.17<4.30 | None 
7 gael ie ae gy Scr 3.53 3. 67 14 8 | Sound..... 2.14X3.78 4 
Jf Eee Leato vee 3. 64 3. 84 . 20 Gane? doo. 3:. 2.103. 31 | None 
Dena cy ss Longleaf.} 5.13 5.31 18 18 | Checked. ..| 2.21«4.25 | None 
ee ae Shortleaf.| 3.27 3.47 20 Dell ka Oto. 1.94x3.63 | None 
340 pa et Longleaf_| 4.47 4.72 are 19 | Sound..... 2.00 4. 02 ) 
Si et oie pee Shortleaf. 3. 81 3.98 evi hyd (oy | ieokse dan to5 2.063. 80 | None 
Sk cles = Beal Abe LES) aie | pei 15 3.46 old 7 | Large knot.| 1.943.92 | None 
SB Be te el ee GOLtzes 4.56 4.81 25 “4\ SOunG. 2.) 2 2.084.16 | None 
at Seen ae Be aa Goren 3.52 3. 69 17 7 | Large knot.| 2.06x4.04 | None 
SWS eae GOe 222% en 3. 85 ails) Srp oound. |... 2.003. 85 | None 
Rise aeeeeeonrlean |i.) O58 5.93 sae) i} eee dowssie 2.25x4.25 | None 
Dipping, coal-tar 
creosote (shipment 
No. 154): 
Stakewmvece ssccsde Shortleaf.| 4.43 4, 49 . 06 Grilis ccs okt ase 2.064.01 | None. 
BRS4 says alae MOA = 22s aa0 3. 40 O7 Ones ee do......| 2.113. 90 | None. 
NOES She a= check Longleaf.} 5.75 5. 96 21 DER il ey POAC) Sea 2.424. 11 1.3 
7 ee Shortleaf.| 3.73 3.78 . 05 6 | Small knot.| 2.15x3.77 | None. 
A ees Longleaf.}| 5.45 5. 60 15 13 | Sound...... 2. 204. 18 3.8 
BD ee the 2 ~ Tal). doe. 4,61 4, 68 7 A ne ie dossso0% 2. 083.75 | None. 
LO Shortleaf.| 3.83 3. 88 05 Sul haee doves: 2. 203. 90 | None 
ce fea) ie doin se 4, 21 4, 27 . 06 6 Est Set dots: 1.993. 80 | None 
A Pee 6 se GO-s-s 2 4,14 4, 21 . 07 7 [oscict: Condo: 2.154. 25 | None 
AG aes eesmis «S52 dps 3.77 3. 82 - 05 if EE deca. 1.98 4.02 | None 
ie aoe ee do:. J. &. 3. 66 3. 73 07 7 | ee dG:c..-5 1.98 4.05 | None 
BBs coeece fas Longleaf.} 5.15 oo - 20 | 16UsE Sees doh. 2. 204.17 | None 
