to collapse, before that they had been a very long while exposed for the aecess of the malt 

 j anna* 



And lastly, when these virgin plants began to be affeeted with age, I diligently searched 

 along w.th several botanists for all the calyxes, and I found these large and flourishing, but the 



t n,7" T re f : U " d ' ***?**' ^pressed, membranaceous, dry, not exhibiting 

 the slightest trace of cotyledons or pulp.f s 



THIRD EXPERIMENT. 



T , ^ ^"r PULCHELLA V*™**™* Clutia) was also, during the months of June and 

 July, kept in the same window of my room. 



The male and female plants were in different pots. 

 abor« h ve. /We " ^^ ab ° Unded in ** * ^ed, not a sing.e flower dropt 



Then I separated the pots to different windows in the same room, nevertheless, all the female 

 flowers produced perfect fruit. icinaie 



I lately removed the mak altogether, and only left the f em ak plan,, having fl rst removed all 

 the former, and newly expanded, flowers. 



From the axilla of each leaf there daily appeared fresh ones, which remained for the space 

 rf eight or twelve days, but afterwards the peduncles turning yellow, they fell off empfy of 



A friend, a botanist, who was delighted with this experiment with myself, one dav ner 

 suaded me, that I should bring a single m ak fl^er from the stove in the garden, whfch he 



mm, -fc So ,„„,,! pl.„,, „«, ^na* bieimi.l ; if , ho, do no. hnnnT.o Tow ,h! Tf I ' ""° '" * C °" Ve '"' " "" »■*• 



« gas aaars: ;r hi r;Lr g ";o:: P s: ,t ^-^ «*-&*- — » - » -» 



Lin. Amaen. Acad. Tom. i. 3 7 5. attention, can save it from perishing in the coming winter 



Bo^VZeTIt £5g£ reSPCCtS ^ A ° AVE A — Sfe*i %> i vide the description accompanying our p^^ 

 _ Hence it is that a „ double flowers fc so ^ ^ than ^ 3 £ ^ ^ ^ ^ ^ _ ^ ^ ^ ^ ^ 



prosecuted these experiments, the results have been exae.lv as record^ b Wus Vide^ " it;*"** '" *" ^^ where 1 b ™ 

 nmentsofSpalanzani, and the eonfutation of them, will be recorded at con^derabTe lel^h C I '°*°^ ^^ where the expe- 

 ^'^n*™'- are found i„^^ however, must be taken, that on the 



./«** plant has in conrse of time produced only male floors, and vice oersT Jo^TvT m- J™ * ^ ** -Ponced, that 

 whole fructmcation of a Palm, which he saw growing at Montpelier and which not 3. VI 1 ^^ t0m> L P " 351 ") describes *e 

 ones bearing dates. R Ay te.ls us in his History of Piants, (vol. fi Eg K tiat „e h^fe.f " """*" ° f "^ fl ° WerS ' but •>»>-» 

 ment loned by Bauhine . Thig variety h fc ^^ S^tttt 2"S "* ^ ~ i " ie *» 



(Chap. iv. p. i 45 .), mentioning that class of trees which are male and female i 7 A * f , ' earned JuN ««™> in his Doxoscopia 



trees, when they have for many years produced flowers witbouTfh, it afterwards somT ^n fi *"" ^ ^ " That such ki "^ «f 

 thinks, " should be farther enquired into." This, since TunTus' Sl ime ZZ T """ Pr ° dUCe fruit without flo wers. This," he 



Jis class are whony^e, while young; but as ^ZlZl V^ZX?^ ££*" ^/T'' ** ^^ *» <™« 

 Thts fact M IL lbr has frequently himself observed in the Mulberry-tree »^ \Z C ! v % Z™' *"* a{terWardsbeC0 ™ ™ tird yf e ™le- 

 whatever .elates to botany, has observed, that a large L ENT[S c" s Z S Tree) in t I 1 T*T * ^^ ^^^ VerSed in 

 flowers, but that for three years past, it had also produced plenty of fmit * ' " *^" B ' h^ Produced only maZe 



placed 



/ 



