each 

C.Jueare x C.Trimos on “ 
ER! ots 1.0 
C.ityra Peters alba x C.Trentino alba om mh es 
C,Dupreana x Brassavola Digbyana (large) oy MM 4.00 
' (medium) BGO 
(small) 200 
C ,Dupreana x C.Dupreana (large) gee Ml 2.00 
: (medium) 2" " rude 
C.?rianae xX Pe.Cliftonii Magnifica 
on C.Mossiae (large) ae. oe 4.00 
iene ny (medium) a 2.00 
-Imperialis x C.Gigas 2s saul 6.00 
Le WGGALA I wa Vere pewervn - a Se ee Ree A SPR 
2. Watering and humidity control. 
ce Shading various tyves of Orchid plants. 
4. Potting inetructions for different species. 
5. Veretative propagation - increasing plants py cuttings. 
6. Insect pests and their eradication. 
7s ‘Treatment of different tynes of Orchids during 
flowering. 
8. Hybridization of Orchid flowers for seed. 
Onn Cetserruatioan of. buiidines for Orchid culture. 
10, ‘Heating of -structures. 
The first lesson will be mailed immediately upon receint 
of enrollment fee and each lesson thereafter will be mailed to 
the student at two week intervals, subject to him having 
answered the five questions which are at the end of each lesson, 
in a manner satisfactory to the instructor... In addition, each 
student will be entitled to ask the instructor five questions 
concernines his own Orchid problems. 
This course will enable both the amateur with ro experi- 
ence and the man with some knowledge of crchids to fulfill his 
desire to rrow these floral aristocrats around which has been 
drawn a veil of mystery. 
Yours very truly, 
Oe & A. WARREN 
CWsW Cyril Warren 
