630 Circulation of the Sap. 



the larva commits great devastation among our poplars and 

 willows, often stripping them entirely of their foliage. 



Acherontia A'tropos. — Rare, but has been captured occa- 

 sionally. 



Sphinx convolvuli, S. ligustri. — These two species are 

 enumerated by that indefatigable naturalist, the late Mr. Geo. 

 Don of Forfar ; but neither of them has yet come under my 

 notice. 



Deilephila Porcellus. — Captured on Will's Braes, by Mr. 

 William Jackson, and now in his collection. 



Macroglossa stellatarum. — Never observed in this vicinity 

 till July, 1833, when it was first noticed on Will's Braes, by 

 Mr. James Christie. These braes are planted with trees, and 

 adorned with a rich store of flowering plants ; among which, 

 the elegant ischium vulgare rears here and there, in beau- 

 tiful clusters, its stately spikes of caerulean blossoms; and the 

 nectareous juices of these were preferred by the humming- 

 bird hawk-moth to all other sweets of the flowery banquet ; 

 and, as it flitted from cup to cup, extracting their luscious 

 contents, its gay and airy motions, the pleasing sounds emitted 

 by its ever-quivering wings, and the glowing associations it 

 awoke in our bosoms, all tended to yield us the purest delight, 

 and call forth our warmest admiration. — William Gardiner, 

 jun. Dundee, October 4. 1834. 



[In II. 460. is a statement of the fact, that Acherontia 

 A'tropos " has been found near Catrine, Ayrshire," and that 

 " the specimen was sent to the Hunterian Museum, Glasgow."] 



Mononychus pseud-acori seems to abound at Pinna/ Cliffi 

 near Lyme Regis, Dorsetshire, more than at any other Place. — 

 My brother, myself, and Mr. Dale took, one day in July, 

 nearly 200 individuals. We found them on (but not in, as 

 has, I believe, been generally supposed) the seed-vessels, and 

 also on the stems and leaves, of the /Vis fcetidissima, which 

 abounds much at Pinney. — F. O. Morris. Doncaster, Sep- 

 tember, 1835. 



Plants. — The Circulation of the Sap in Plants may be dis- 

 tinctly traced in the ^flisma Plantago, quite as distinctly as in 

 the Chara, mentioned in V. 349, 350. ; far more distinctly, and 

 so as to be a most beautiful spectacle, in the Chelidonium 

 majus and grandiflorum, and, no doubt, in all the species of the 

 genus, i — Henry Turner. Botanic Garden, Bury St. Edmunds, 

 August, 1835. 



Lophospermum erubescens, the seed of, forms a most beau- 

 tiful opaque microscopic object. — Id. 



The Hairs of Species of Plants may, the following statement 



