148 General JSTotices. 



The editors of this Journal wish to call public attention to the 

 fact, that they will, hereafter, on the conditions stated below, frank 

 the nutnbers to all of their subscribers who receive the work directly 

 from them bij mail. Their object, in making this offer, is to place 

 those persons who are so situated that they cannot take the work 

 through an agent, and therefore free of charge of transportation, on 

 the same footing, in this res()ect, with city subscribers. Subscribers 

 by mail have heretofore paid from !i!l,00 to ^1,37^ per annum for 

 postage, which has been a sufficient consideration to induce many to 

 decline taking the work. Now that this objection is removed, upon 

 the simple condition of punctual remittances, the editors confidently 

 hope that the number of their mail subscribers will be much increas- 

 ed; and they make no apology to their present supporters and con- 

 tributors, for asking their assistance in aiding them to sustain this 

 experiment, by making this notice more public, and by inducing their 

 friends to subscribe. 



The American Journal of Science and Arts is published at New 

 Haven, Connecticut. Each number contains at least two hundred 

 pages, closely and handsomely ])rinted on good paper, and fully il- 

 lustrated by engravings. The subscription is $6,00 in advance, by 

 mail. The extra dollar beyond the usual price of the literary quar- 

 terlies is indispensable, on account of a more limited patronage, and 

 the great expense of engravings. 



MISCELLANEOUS INTELLIGENCE. 



Art. I, General Notices. 



ChanQ;ing the Color of white Hyacinths. — Dr. Liebig, in his Or- 

 ganic Chemistry ap[)lied to agriculture, soon to be presented to the 

 American reader, with notes by Dr. Webster, of Cambridge, as an- 

 nounced in our last number, states that the color of a white hyacinth 

 may be changed, for a short period, to a pale red hue, by simply 

 sprinkling the soil with the juice of the Phytolacca decandra, (com- 

 mon poke-root or poke-berry.) In one or two hours after, the flow- 

 ers will assume a red color, which the influence of sunshine will 

 cause to become gradually white again in a few days. The juice is 

 taken up by the roots, and such parts, if any, of its elements as are 

 nutritious are taken up, and the remainder excreted. When the 

 work of Dr. Liebig appears, we shall take an early opportunity to 

 review it at some length, as it is undoubtedly one of the most impor- 

 tant additions to vegetable physiology that has ever been made. — Ed. 



Respiration of Plants. — JM. Colin has read before the Academy of 

 Sciences a memoir on the respiration of plants, the experiments de- 

 tailed in which were performed with M. Edwards, Sen. 



