355 



an inch in size, and not satisfactory, as there was no clock-work to 

 regulate the motion of the telescope. The present picture is magni- 

 fied from a daguerreotype of three inches, taken through the object- 

 glass of the large Cambridge Refractor, by displacing the eye-piece 

 and placing the plate in the focus of the object-glass. 



In consequence of the clock-movement of the telescope, not ex- 

 actly coinciding with the motion of the earth, there is an indistinct- 

 ness of the lines, which, through the telescope, would be perfectly 

 sharp. This indistinctness, though slight, Mr. Whipple hopes to re- 

 medy by an adjustment applied to the clock-motion, invented by 

 Professor Bond, which will enable him, he supposes, to produce as 

 perfect a daguerreotype, often or more inches in diameter, as he now 

 has of three inches. From such a plate a crystalotype may be mag- 

 nified to four feet in diameter. 



The enlarged picture, now before the Society, exhibits the radia- 

 tions extending through Mare Serenitatis very beautifully, whilst those 

 issuing from around Tycho are also very distinct. In the picture 

 formerly exhibited these were but faintly delineated. 



The proceedings of the Board of Officers and Council of tlie 

 Society, at their late meeting, were read. 



A proposed amendment to the Laws of the Society, recom- 

 mended by the Officers and Council, — to wit: Add to Chapter 

 VII. of the Laws, as Article 7, the following: "The ex-Pre- 

 sidents of the Society shall be members of the Board of Offi- 

 cers and Council:" — which was read and laid over for consi- 

 deration at next meeting. 



The Treasurer read the following letter, addressed to him 

 by the President of the Society: 



November 18, 1853. 

 Dear Sir, — I send you, enclosed, a check for five hundred dollars, 

 which I beg you to present, in my name, to the Society, as a contri- 

 bution towards the expense of preparing and printing a correct cata- 

 logue of the library, and of enlarging the accommodations for the 

 books. 



Very respectfully and truly yours, 



FRANKLIN BACHE. 

 To Charles B. Trego, Esq 



Treas. Am. Phil. Society. 



