Notes and Gleanings. 



241 



V/iNDOW Propagating-Tank. — I send you herewith drawings of a win- 

 dow propagating-tank. It is not an invention of my own ; but it embodies so 

 many really good points, that I wish to place it before the public for their use 

 and approval. Its chief recommendations are cheapness, utility, and slight cost 

 both of labor arid material with which it may be run. 



The chimney of an ordinary kerosene-lamp is made of tin, double, and water- 

 tight, so as to hold water. The water in this chimney is connected with the 



water in the tank by means of pipes, through which the water flows. One of 

 the pipes is connected to the chimney at the top, and the other at the bottom ; 

 the pipes entering the tank in the different divisions, as shown in Fig. 2. By 

 means of this arrangement, when in operation, the water in the tank is kept in 

 constant circulation according to well-known principles, warming the bed of 



-J 



earth placed over the water, giving to cuttings and seeds placed in the bed of 

 earth what is known as bottom-heat. Cuttings of roses, shrubs, grapes, and, in 

 fact, of almost any of the trees or plants found in door-yards or lawns, may be 

 started into growth with it. 



The cost of constructing one for an ordinary-sized window will not exceed 

 five dollars, and may be used many seasons. D. W. S> 



Galbna, III. 



