VOL. Xllf.] PHILOSOPHICAL TRANSACTIONS. 657 



unexpected variety; which nature has bestowed upon these parts, next to the 

 seed Itself, of greatest use. For every plant being «pp£u&0nXuf,* the attire answers 

 to the genitals of male and female both together ; and the powder which they 

 disburse, let fall on the uterus, is the sperm of plants. The time also, in which 

 the flower is formed, is observed, not to be the same year in which it appears, 

 as hath hitherto been thought, but the year before. Hereto is subjoined an 

 appendix; being a method proposed for the ready finding, by the leaf and flower, 

 to what sort any plant appertains. 



The 3d part, of fruits. In which are described these following, viz. an apple, 

 lemon, cucumber^ pear, plum, grape, gooseberry, and some others; which 

 are so many several sorts of the fleshy uterus. Next, of the seed-case or 

 membranous uterus. And lastly, the use of the several parts, both to the fruit 

 and seed, is set down. Particularly^ the manner of the ejaculation of the 

 seed in noli-me-tangere. 



The last part, of seeds. Wherein we have first a description of the various 

 and elegant figures of seeds. Next, an account of their number, and several 

 motions, and for what purpose they are made. As for instance, in the seed of 

 hart's tongue, and all that tribe, which are shot off with a spring contrived for 

 it. The annual product of these seeds from one plant being about a million ; 

 of which, ten thousand are not so large as a white pepper corn. After this, 

 the description and use of the covers of the seed, and of the vitellum ; of the 

 several parts of the foetus or true seed ; and lastly, a further account of the rare 

 contrivance of the stone in fruits, and of the three membranes over the seed, 

 in order to the generation and growth of the same. Thus far the anatomy. 

 The follmving Lectures are these : — 



I. Of the nature, causes, and power of mixture. In which a foundation is 

 laid for these axioms, viz. That the whole business of the material world is 

 nothing else but mixture. That natural and artificial mixture are the same, as 

 also the causes of both. And that therefore, so far as we can govern mixture, 

 we may do what nature does. As in rendering all bodies sociable or miscible, 

 in making artificial bodies, in imitation of those of nature's own production, &c. 

 — II. Experiments in consort, of the luctation arising from the mixture of se- 

 veral menstruums with all sorts of bodies. Being a specimen of a natural his- 

 tory of the materia medica. — III. An essay on the various proportions, wherein 

 the lixivial salt is found in plants. — IV. A discourse concerning the essential and 

 marine or muriatic salts of plants. — V. A discourse on the colours of plants. — 



VI. A discourse on the diversities and causes of tastes, chiefly in plants. — 



VII. Experiments in concert on the solution of salts in water. 



* The male and female organs are not always within one corolla, or upon one plant 

 VOL. II« 4 P 



