274 



MONTHLY BULLETIN. 



Fig. 92. — Map of underground spraying system in the E. A. Gammon pear orchard 

 at Hood, Sacramento County. A. Ij"xlj"x3" T with S.C. 1*" U. B. lj"xli'' 

 cross S-br. IJ" V- IJ" U. N-br. IJ" V. IJ" U. E-br. l"-l^""bush. 1" V-1" U. 

 C. 15"xl" cross W-br. 1" V-1" U.E-br. I"xl"x3" T & S.C. 1" V-1" U. N-tar. 

 1-i" V. i" U. D. lj"xl" Cross E & W br. 1" V-1" U. br. li" V-U. E. l|"xl" cross 

 E & W br. 1"V-1"U. N-br. l"xlj" bush. 1" V-1" U. F. 1" T E. br. ^"-1" bush, 

 5" T & S.C. r' U W br. 1" V 1" U. G. lj"xl" T E. br. 1" V-1" U. W br. §"- 

 1" bush. 3" V-3" U. H. l"xl"xr' T & S,C, 1" U. I. g" T & S.C.-3" U. J. l"x 

 l"xa" T. & S.C. |"-1" bush. 3" U. K. r' Ell & S.C. M. 1" Ell-g" to 1" bush. 

 & S.C. N. i" T-3" IT in br. P. l"xl"xi" T-J" U in br. R. 3" Ell-f" U. 

 S. 3"x3"xl" TEW. br. 3" U. T. 1" T-1" U in br. Symbols. — N — North; S — 

 South; E — East; W-^West ; V — Valve; U — Union; SC — Service cock; br. — branch. 

 (Copy by O. W. Newman.) 



HAYWARD REED SYSTEM. 



Like many others among the pear growers, Mr. Reed experienced 

 great difficulty in getting his orchard sprayed at the right time each 

 spring, because of late rains and wet soil. The dread disease, scab, which 



