' ■^. '<''(■ 



August 19, 1909. 



The Weekly Florists' Review* 



99 



V 



The Perfection 



Of Ip-to-Date 



Greenhouse Heating 



Science 



Automatic Hot Water Circulator The Castle System of forced circu- 

 lation of hot water for greenhouse heating is the only one that has demonstrated its 

 practicability, economy and perfection of action. It works while you sleep and if 

 anything should happen to put your forced circulation out of commission, this device 

 takes up its work automatically. Its use increases the efficiency of your heating 

 plant but reduces the expense. 



Don't build a greenhouse or remodel the old plant without securing 

 complete information about the Castle Boiler. 



THE CASTLE COMPANY 



170 Summer Street, BOSTON, MASS. 



S«nd your addreaa and I will 

 mall you literature. 



The Days of Hot 



Water Heating 



of GreenhouBeB are becoming a thing of the past. Steam heat Is the heat. 

 It can be controlled better and no danger of loss of plants by sudden drop 

 in terbperature. To ac- 

 complish this, 



^H complish this, however, 



^^ I you must maintain a pres 



sure of 20 or more pounds 

 on the boiler and reduce it with a regulating valve 

 to about 10 pounds. Now comes the point. 

 The Valve to use is the 



Eclipse Regulating Valve 



as shown in the cut. This valve is now used by 

 some of the largest growers* and we can furnish 

 any number of testimonials as to their efficiency. 



We will be glad to send our catalogue, 



showing our full line of Regulating Valves, 



Steam Traps, Pump Qovernors, etc. 



Hoghson Steam Specialtj Co. 



Successors to the John Davis Company 



5021-5023 S. State St., CHICAGO 



6j9g^m«M%iu. V^mwiA.. ^x%. 



ruoiuvr* 



wmm. wouk 



^^A//y^i 



«^., 



/<«?_ 



Tlw Jeha 9*Tlt Co.. 



Chia*c*. I^^« 



In n?!/ to your fnor of th* 9th *«lclse how 

 m 1U*4 th* t^o alcht Inoh a^np** I(*4utas TalTaa ■• 

 bovckt of 70tt t«O'70ar» a^.- Thot* two TmlT«« haro toos la 

 cOBatant aaa alaaa thou and baT* flTaa tha vary bait kla4 of 

 aarrloa* Tha taqparatora* haTa Tarlat ao Bosh Mt 4eora «Brtac 

 tha paat tno alatara that It aaa a sraat aaTla< haTlaf tbaa* 

 rateelns Talvaa warklas to aloaly that «a ooald ooatrol oar 

 taaparatora liiallc tha hanaaa with varr llttla flastaatloa. A 

 ■ttirn haatlBf plast ooold aot cat aloa* wltheat thaa. 

 XaapaatfaU/, 



'^U.«-*Ay>^A>Ut>v^vvi,»^ 



