354 Notices of Botanical Works recently 



This disk of seven inches was wrought, by that able artist Mr Tully, in- 

 to an object-glass twelve feet in focal length ; and in his report to the 

 Astronomical Society, on the 25 th January 1825, he says, that he has 

 not quite succeeded in working the glass to his mind, and adds, " But 

 I have no doubt I shall be able to make it into a very perfect instrument ; 

 the glass seems entirely homogeneous and free from fault. The material 

 of the glass," he continues, " appears to be different from our flint-glass, 

 as it grinds and polishes much easier. I have another piece of flint-glass 

 3£ inches, of the same manufacture, that seems likewise to be quite free 

 from fault, and is as clear all over as any fluid." 



To the preceding interesting particulars we regret to add, that M. 

 Guinand died, after a short illness, about the end of 1823, and about the 

 76th year of his age, immediately after arrangements had been made with 

 the French government for the purchase of his secret. His son fortunately 

 possesses all the details of the process, and is ready to supply opticians with 

 glass for object-glasses of large apertures. 



AaT. XXXII.— NOTICES OF RECENTLY PUBLISHED 

 PERIODICAL BOTANICAL WORKS. 



Monandrian Plants of the Order Scitaminece, by William Roscoe, Esq. 



No. 2. 



The second part of this valuable publication appeared during the year 

 1824, and it fully justifies the expectations which we had entertained from 

 the well known talents of its author. The plates we consider to be executed 

 in better style than those of the first number. It contains Canna compac- 

 ta, n. sp.; — Canna pedunculata of Lodd. Bot. Cab. — Maranta gibba, Sra. 

 in Rees' Cycl. Hedychium acuminatum, n. sp. Hedychium Gardneria- 

 num of Dr Wallich, (a most superb plant ;) Kwmpferia rotunda, Curt. — 

 Curcuma Amada of Roxb. Fl. Ind. : — and Globba saltatoria (Mantisia 

 saltatoria of Curtis.) 



Drinnmond' s Musci Scotici. 

 The second volume of this useful work, some of the contents of which 

 were noticed, previous to its publication, in our second number, has now 

 appeared. 



Botanical Magazine for December, No. 458. 

 Tab. 2531. Crinum arenarium 12. from Australia, t. 2532. Pergu- 

 lariu sanguinolenta, Lindley in Hort. Trans, t. 2533. Hamelia patens, 



knowledge, devised a graphic method of ascertaining the proportion of the curves 

 that must be given to the lenses, afterwards wrought and polished them by means pe- 

 culiar to himself; and, lastly, constructed all the parts of the different mountings 

 either with joints or on stands, melted and turned the plates, soldered the tubes, 

 prepared the wood, and compounded the varnish. 



