126 BOTANICAL NOTES, NOTICES, AND QUERIES. [April, 



tliem less nauseous, more concentrated, and purer, but equally efficacious. 

 The arguments usually adduced against this are, that it involves a great 

 deal of valuable time; that experiments are not conducted without ex- 

 pense ; that the manipulation attending many chemical compounds requires 

 experience and tact, which all iudividiuUs do not possess; lastly, and 

 chiefly, that Avlien prepared and submitted to the public, these preparations 

 do not always take." 



Another still more important suggestion is thrown out, and 

 one which has a close relation to the matters with which j)hyto- 

 logy has to deal, viz. — 



"That prizes be given to the person or persons who shall best make 

 and produce the active principle of any given plant or plants, in such a 

 form as to be fit for exhibition as medicines ; that the process be made as 

 simple and practicable as possible. That preference be given to such ar- 

 ticles as rhubarb, gentian, etc., and that contributions be accepted of one 

 shillino- and upwards. Other minutise to be arranged as circumstances 

 may from time to time determine." 



Our next extract will further illustrate the nature and objects 

 of this periodical, which, we should state, is published for the 

 trade, and sold only to members of this trading community : — 



" The Colonrlnfj Matter of Leaves. — Wlien leaves are extracted by alco- 

 hol, a green oil is obtained, which is called chlorophjll. Fremy has ascer- 

 tained that this consists of a hlae and a yellow principle, which he has 

 succeeded in isolating: to the blue principle he has given the name 

 phi/lloci/anine, and to the yellow the name phylloxantkine. Leaves which 

 become yellow in autumn contain only the latter." 



"We may further say that this periodical, of which we have seen 

 but two numbers, has our good wishes. May the favourable 

 gale of prosperity constantly fill its sails, and may its circulation 

 and usefulness be equal to the talent and enterprise of its pro- 

 prietor and manager. R- 



BOTANICAL NOTES, NOTICES, AND QUERIES. 

 Liverpool Naturalists' Field Club. 



Sir, — It may interest some of your readers to know that the Liveipool 

 Naturalists' Field Club intend having a grand Festival in St. George's 

 Hall, about the middle of April ; I have therefore the pleasure of enclosing 

 a programme for your inspection. Yours, etc., H. S. Fisher. 



The Editor of the ' Phytologist ' regrets that he did not receive the above 



