274 



An?ials of Horticiiliure. 



per levers are pulled down, the sas^h 

 until the top of the lower portion of the 

 when any further pulling of the levers 

 must raise the whole sash, as shown 

 in Fig, 64. The first downward move- 

 ment of the sash allows the top of the 

 sash to lie under a cap, to prevent 

 leaking." — L. H. Bailey, in American 

 Garden, 8g. 



Automatic Rain- Water Switch. — 

 (Fig. 65.) A is the conductor from 

 the roof, and it terminates in the 

 switch D. B is the pipe leading to 

 the cistern, and C is a flaring receiver 

 constructed to receive one end of the 

 switch, D, when it is tilted in that 

 direction. ^ is a barrel for receiving 

 the first water from the roof, i^ is a 

 float, connected with the switch and 

 raising it by rod G. — Pop. Gar, v. p6. 



is carried downwards 

 lever strikes the sash, 



Fig. 65. 



Knapsack 

 Pumps . — Sev- 

 e r a 1 knapsack 

 pumps have 

 been introduced 

 during the year, 

 all of which pro- 

 ceed upon the 

 same principles. 

 The Galloway 

 pump (Fig. 66) 

 perhaps c o m - 

 bines more mer- 

 its than any 

 other. The 

 lance nozzle, 

 which is also 

 shown in the fig- 

 ure, is an inven- 

 tion of note (see 



