116 



The Florists^ Review 



JULT 21. 1921 



Greenhouse Heating 



Subscribers are invited to write the 

 editor of this department with regard to 

 any details of greenhouse heating that 

 are not understood. When information 

 is desired regarding the capacity of boil- 

 ers, or the amount of radiation required 

 for a greenhouse, the needed temperatures 

 should be stated in the inquiry, as well 

 as the amount of glass in the side walls, 

 and the dimensions and general arrange- 

 ment of the greenhouses. It is often 

 helpful, also, to have a sketch showing 

 the location of the houses. 



SHORTAGE OF COAL AND CARS. 



That the danger of a coal shortage is 

 increasing is the opinion expressed by 

 the Railway Age in an editorial in its 

 current issue. "Wise people w^ho know 

 they must buy coal between now and 

 next winter will buy it as soon aa prac- 

 ticable," it states. "Foolish people 

 who know they will have to buy coal will 

 postpone buying it and probably pay 

 dearly for doing so. If there is any con- 

 siderable increase of manufacturing and 

 other forms of industrial activity, there 

 will be a coal shortage, and a serious 

 one, unless buying for business and do- 

 mestic purposes soon increases very 

 largely. 



"The normal increase in consumption 

 of coal in the United States for a long 

 time has been from 10,000,000 to 20,000,- 

 000 tons a year. The year 1914, like the 

 year 1921,' was a year of depression. 

 Nevertheless, in the first six months of 

 1921 the amount of coal produced and 

 shipped actually was 9,000,000 tons less 

 than in the same months of 1914, seven 

 years ago, and, in fact, less than in the 

 first six months of anv of the last eight 

 years, except 1915. It was 30,000,000 

 tons less in the first six months of 1921 

 than in 191.3; .'50,000,000 tons less than in 

 1915; 77,000,000 tons leas than in 1917; 

 86,000,000 tons less than in 1918, and 

 62,000,000 tons less than in 1920. At the 

 present rate of output the total produc- 

 tion of 1921 would be less than 400,000,- 

 000 tons. The last year in which less 

 than this amount of coal was consumed 

 was 1909 — twelve years ago. 



"There is every reason why consumers 

 who can buy and store coal to provide 

 for future needs should do so now. The 

 railways today have a surplus of 163,000 

 coal cars. In ad<lition, they have over 

 130,000 coal cars in bad order, many of 

 which could soon be put into service if 

 there were a demand for them. This 

 makes a total of almost 300,000 coal cars 

 for which there is no demand now, but 

 past experience shows that a large in- 

 crease of coal traffic in the fall and win- 



KROESCHELL 

 BOILERS 



In the greenhouse business Kroeschell Boilers 

 are used almost entirely. There is compara- 

 tively little glass today that is not heated by 

 Kroeschell Boilers. 



They are not used widely in the greenhouse 

 business alone, but in every industry, for all 

 purposes. Expert engineers, men who study 

 the merits of every kind of boiler made, in- 

 variably choose the Kroeschell. They know 

 that the Kroeschell Boiler meets every re- 

 quirement with highest efficiency. 



There is no better boiler for greenhouse 

 heating than the Kroeschell High Pressure 

 Steam Boiler. It is used in the largest 

 ranges by the best growers. 



The large range of the A. F. Amling Co. at May- 

 wood is heated entirely by four 800 Horse Power 

 Kroeschell High Pressure Steam Boilers. 



The Wrigley Building, Chicago's new office build- 

 ing, oQe of the city's largest and finest, is equip- 

 ped with 4oO Horse Power Kroeschell Boilers. 



EnEineering Advice and Quota- 

 tions cheorfuliy submittod— 

 Let us knew your requirements 



WHEN YOU BUY - GET A KROESCHELL 

 "THE BOILER OF UNEQUALED FUEL ECONOIMV" 



f 



t.1 



I.; 

 K 

 K 



KROESCHELL BROS. CO., 



444 W. Erie Stre«t 

 CHICAGO, ILL. 



