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NOVBMBEB 24, 1910. 



The Weekly Florists' Review. 



83 



USE THIS SIMPLE INSTRUMENT 



-AND- 



Save Your Stock 

 From 



t^(r€^5C?^'^ 



Metallic Thermometer **A** 



Sbm— e Inches hiffh, 4 Inches wide, 2 Inches deep. 

 Case made of cast aluminum, highly finished. 



By a sudden cold snap or a rapid thaw 



Utf\1^9 Because it is an accurate, fully tested thermometer, show- 

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

 a device 'which 'will ring^ a bell at your bedside w^hen the 

 g^reenhouse g^^B either too hot or too cold. Just the protection 

 you have wanted all these years. 



We guarantee that results will be obtained at all thnes. This device 

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

 years, and at the same time has given entire satisfaction, under all 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 will 

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

 over trouble from sudden temperature changes. 



INVESTIGATE IT TODAY 



isss#° vThS^tjs^ loss savers you reed 



National Clock & Electric Nfg. Co.3t loi^s, foini 



Mention The Review whpn you write. 



are 100 feet in length, one 2-inch flow 

 pipe and eight 1^-inch returns will 

 be needed. Tor houses 100 to 200 feet 

 in length, use a 2^ -inch flow pipe. 

 For four houses 100 feet long and of 

 the width stated, the boiler should 

 have a rating of twenty-five horse- 

 power, with an increase of five horse- 

 power for each twenty-five feet of ad- 

 ditional length of the houses. 



A WEST VIRGINIA HOUSE. 



I hfeve just erected a greenhouse, 28x 

 101 feet, and twelve feet high to the 

 ridge. It is joined to another house on 

 the north side and has three feet of 

 glass in the south side. One end is 

 glass; the other end is joined to the 

 boiler house. The boiler is in a pit. The 

 house is piped with a downhill system, 

 for low pressure steam, using two runs 

 of 2-inch pipe overhead, six runs of 

 1-inch pipe on the south wall, under the 

 gutter, and five runs of 1-inch pipe on 

 the north wall. The 1-inch pipe was 

 used because I had it on hand. 



How many air valves will be needed 

 in this house and where should they be 

 located? What temperature will this 

 system of piping carry in zero weather! 

 I have arrangements so that I can 

 easily add as many more pipes as would 

 be needed; I can add nine more if neces- 

 **ary. Is this system all right! 



Please tell me the rating of my boiler 

 in horse-power. It is a fire-box style or 

 locomotive type of boiler and is twenty- 

 one feet long, six feet high at the fire- 

 box and four feet in diameter at the 

 smokestack, with water under the ash- 

 pan. It contains fifty-seven 3-inch flues, 



GREENHOUSE HEATING 



is a perplexing aneation to all florists EXCEPT those nslng 



MOREHEAD STEAM TRAPS 



n The installation of a Morehead Return Steam Trap in a 

 •■ Greenhouse is absolute evidence of progressiveness on the 

 part of the florist. 



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

 ~ head " is an investment in both satisfaction and economy. 



n The majoritv of florists are using Morehead Traps. If you 



" are one of tne exceptions, it will be to your 



interest to write us — we will make you a 



liberal trial offer proposition. \ </U'idlS7!(3(/\ii[^oj, 



fIT by ^eay of eettins: acquainted, lust send your 

 ^ name and address and aak for "Trap Book. " 



Morehead Mfg. Co. 



Dept. M 



DETROIT, MICH. 



Mention Tiie Review when you write. 



Successors to the 

 John Davis Company 



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 lae free from 

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

 HuBhson Resulatlne 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. 



