pin examines son. 

 sifUing \^K We have first the capii 



the;thor. ing which M. Lothclier, a 



nade a number of interesting 

 sultin c conclusion that shade and damp tend to suppress 



tiic P .arts of the plants. On the other hand, whenever 



the pia Hi which it grows is dry and scorched by the sun, the 

 plant bristles and multiplies its spikes, as though it felt that, 

 as almost the sole sv x^WiiS ^^^^^ or in the hot sknd, 



it is called upon to mighty effort to re 



fences aa-ainst an enc ) longer has a choice 



to |.,.. .pon. It is a able far . -r, tiiat, when 



cultivated by man, mo )e thorny plants gradually lay 



aside their weapons, leavmg the care of their saf 

 supernatural protector ^s adopted them in his fenced 



grounds.* 



» Almong the pfants that have ceised tt> defend themselves, the OKMt strlkini? ca^e is 

 of the L€ 



•'In It* vii... ->., t. says uic auove-rnentiancd author, "if we break .< «aik of . 

 \ we see * white juice exude from it, the iatex, a substance formed of dr^rrmt n, 



[44] 



