RECORDING THERMOMETERS, For use whenever knotiedge is desired : Ronee te goes 
above or below any ‘given point. Furnished with ae Chaxzt No. 3 Weekly Chart 
Noe 2. Range of Temperature «20° to 120° F, Price $60, at f.0e ef oe a pointe 
GRO-QUIOK HEATING CABLES & THERMOSTATS 
Cables for use in rooting mediums, soil or may be strung in air, May also be 
used in cabinets, werdian cases, aquariums, to prevent water pipes from freezing, etc, 
Catalog for plant box when used to protect water Delivered 
lumber and cabt ee ___pips from fteezing ; ae 198 
AG 6,3 ft, oable ied sqo ft, for umder 4 ft, of pipe 15 watts, 115 volts $1.00 
HibeslesQeitghcebida test, tg t0re 4400 6 ftp of pipe 50 watts, Lio volts 1.80 
M26 26 ft, dable 6 sq, ft, for 6 to 12 ft, of pipe 6O watts: 115 volts 2.80 
J56 56 ft, cable 14 sq, ft. for 12 to 25 f, of pipe 140 watts, 115 volts 4,00 
§112 112 ft, cable 28 sq». ft, for 25 to 50 ft, of pipe 280 watts, 115 volts 6.00 
2350 VOLT CABLES: All of the above cables can be supplied for 240 volts, Such 
cables are twice as long, cost twice as much, end protect tvice as much footage of 
pipe, For instance, seek cable, 22) ft. long. for 230 volts will protent 100 feet 
of pipe, prise $12.00, This size cable could also be used in rooting mediums and 
wouldbe sufficent for 56 sqa ft» 
each 
AT ATR THERMOSTAT for hot beds, aquariums, rooting mediums, plant boxes and 
“cabinets, 1000 watts on either 115 or 230 volt A.C. cirouitsessse00e$ 1.50 
Br BULB THER MOSTAT for use in gréenhouses where close control of soil 
Te “Eenporeture is important, 1700 watts on 115 volts or 3400 watts 
on. a0 volt As Ce dined tetany tas Bake Peteutwien Lain doe aain s Ye wiee a 15,00 
FAT FIXED ATR TEMPERATURE THERMOSTAT. set at 35° F,. for use in protecting 
“water pipes from freezing, 500 watts, 115 or 230 volts Agln eosccecce 1450 
WRAP~ON INSULATION for protecting le ft, of Di DOsescevescacvreseenceler Sets, 1,00 
Cables | For Electric Seed Beds 
tht en aa oe aa a 
Cables for use only in damp soil or waters 
JO cable only; lO ft». 200 mects, 115 volts for 20 sqe Pte anacecesesessetoa Coe 
S80 cable only; 80 it, hoo watts ; a5 volts for ho Sqoa ft, OCOTBROOCOHEOCABMAETS Led 
SiG0ucablesonly,200 fb_s800 watts, 270uvolts. for COssqeotte. cauucscaccneeoeds 
oa 
a 
JOA for single sash bed or 20 sqe ft, (has JO cable & AT air thermostat)ecs 627 
S80A for dovble sash bed or 0 Sdo ft, (has S80 cable & AT air thermostat) <, © 
All cables and’ thermostats will be shipped with complete instructions via 
parcel post prepaid, usiess we are otherwise instructed, 
GUARANTEE; ALL Gro-Quick Cables and Thermostats are guaranteed to be of lst class 
material and workmeneship, All sales are subject to refund in full if returned 
within ten days. 
10% discount will be allowed on orders for $25,00 or more at list price, Commercial 
Growers please write for special discounts, 
SUDBURY SOIL TEST KITS 
Sudbury Soil Test Kits are used in testing soil for nitrogen, phosphorus, 
potash, and‘acidity, They are widely used by farmers, large commercial growers, 
greenhouses, murserlLes, government departments, and thousands of enthusiastic 
amateur gordne's 
Soil Test Kit, Delux {Mod a, A)> Cased in handsome streamlined vault-type, welded 
evesl, pearl finished oentsiner with full length piano hinge and sturdy carrying 
hendle, Complete instructions. Helpful charts showing needs of lawa grasses, shruby, 
flowers, vegetables, and farm crops, No knowledge of chemistry needed, Conbatns 
