:i^~-f-^'-Vi-^-: 



December 1, 1910. 



The Weekly Florists' Review. 



85 



USE THIS SIMPLE INSTRUMENT 



-AND- 



Metallic Thermometer '*A** 



Siz>— S iDchea hlffh, 4 Inches wide, 2 inches deep. 

 Oaae made of cast aluminum, hlgrhly finished. 



Save Your Stock 



From Destruction 



By a sudden cold snap or a rapid thaw 



■4|#\1J^9 Because it is an accurate, fully tested thermometer, show- 

 ■*^^ ■• • ing the correct temperature at all times, and combines 

 a device which will ringf a bell at your bedside when the 

 greenhouse gr^^s either too hot or too cold. Just the protection 

 you have wanted all these years. 



We guarantee that results will be obtained at aU times. This device 

 has been subjected to the severest tests in our laboratory for over two 

 3rears, and at the same time has given entire satisfaction, under aU con- 

 ditions, to many users in the trade. 



All you have to do is to set the pointers at the highest and lowest 

 temperatures you want and the thermometer will do the rest. It wiU 

 ring a good, loud beU when either point is reached, and saves aU worry 

 over trouble from sudden temperature changes. 



INVESTIGATE IT TODAY 



l^rVTHS1?#'iSSSI LOSS SAVERS YOU NEED 



National Clock & Electric Nfg. Co.,st Louis, Nissoini 



Mention The Review yhen you write. 



it to be run at 45 to 50 degrees at night. 

 This part has raised benches. The other 

 part is ten feet wide, eighteen feet 

 long and two feet high at the sides, 

 with a sunken walk and solid beds. It 

 IS to have a temperature of 40 to 45 

 degrees at night. We thought we might 

 use about four rows of 2-ineh pipe for 

 the 40-foot part and three rows of 

 2-inch pipe for the 18-foot part. What 

 do you think? In case we use four 

 rows of 2-inch pipe, would it be best 

 to use two flows and two returns or one 

 flow and three returns, or does it make 

 any (^fference? 



Inasmuch as the lowest part of the 

 house is the farthest from the boiler, 

 would it be satisfactory to run the flow 

 along the ridge of the low part of the 

 house and then, on entering the high 

 part, make a sharp turn and run 

 along the sides near the glass or eaves, 

 because if we kept on through the cen- 

 ter of the higher house at the proper 

 elevation, it would be in the way of 

 the plants? In other words, would an 

 Jingle in the flow pipe interfere with 

 the circulation if the pitch is correct? 

 is the radiation of 2-inch pipe as satis- 

 factory as its equivalent in l^A-inch 

 pipe? If so, it will be quite a little 

 cheaper to use 2-inch. Also, in case 

 only one flow pipe is used, would you 

 advise using one of the holes in the 

 boiler and plugging the other, or would 

 it be better to have two pipes enter the 

 top of the boiler and unite them near 

 the boiler? The boiler, which is a 

 Wilks upright, 20x36, stands three feet 

 ten inches on its base and is set two 

 feet below the level of the greenhouse. 

 Is that correct? We cannot well dig 

 lower. We have an expansion tank, 



GREENHOUSE HEATING 



q 



q 



li a perplexing anestlon to all florists EXCEPT those nslnr 



MOREHEAD STEAM TRAPS 



The installation of a Morehead Return Steam Trap in a 

 Greenhouse is absolute evidence of progressiveness on the 

 part of the florist. 



It is further evidence of good management, for the "More- 

 head " is an investment m both satisfaction and economy. 



fl 



The majoritv of florists are using Morehead Traps 



are one of tne exceptions, it will be to your 



interest to write us — we will make you a 



hberal trial ofier proposition. 



By \7ay of Bettlneacaualnted, lust send your 

 name and address and ask for "Trap Book." 



If you 



Morehead Mfg. Co. 



Dept. M 



DETROIT, MICH. 



Mention The Review when you write. 



Successon to the 

 John Davis Companr 



No loss from sudden drops in 

 temperature if you use the 



Hughson Regulating Valve 



In connection with a steam heating plant. Carry 40 or 

 50 pounds pressure on the boiler and set the valve for 5 

 or 10 pounds— it will do the rest. You'll be free from 

 worrv this winter, if you follow this advice: " Install a 

 HuBbson ResulatlnB Valve when making your 

 repairs." Ask for our Catalogue, which also shows 

 Steam Traps and other devices. 



HUGHSON STEAM SPECIALTY CO. 



5021-5023 S. State St., CHICAGO, ILL. 



Mention The Review when you write. 



