I 



Miscellan les. 38^ 



If we possessed all the facts, and it were proper lo publish them, 

 we are not now disposed to enter into the details of the manufacture ; 

 and it is mentioned again, that we may say, from personal inspection, 

 and a very full and obliging exhibition of the manufacture, by the 

 proprietor, that we entertain the fullest conviction of its entire suc- 

 cess. The porcelain is excellent and very beautiful, and as the pub- 

 lic ajfTord Mr. Tucker encouragement, by purchasing, liberally, his 

 fine productions, he will be able to add all the embellishments in tlie 

 merely ornamental part of the manufacture, which fancy and taste 

 may require. 



In surveying, with some attention, the great improvements which 

 tlie lapse of a few years has introduced into Philadelphia and its en- 

 virons, nothing impressed us more agreeably, even in this city of in- 

 stitutions^ science and arts, than this unostentatious, but perfectly 

 successful manufacture of porcelain. The patriotism of this country 

 will make no sacrifice by affording Mr. Tucker all tlie encourage- 

 ment which he can desire, and which he so richly deserves. 



22. Improved Scale of Chemical Eqitivalents. — In a former vol- 

 ume of this Journal, we mentioned the improved edition of Dr. Wol- 

 laston's beautiful instrument by Messrs. Beck h, Henry. A second 

 edition was published by them in 1828, and this improved scale, 

 strongly recommended by the adoption of hydrogen as unity. Is also 



executed with great neatness, and we are happy to see it thus brought 

 within the reach of all students of chemistry in this country.. 



It Is justly observed that it is founded on tlie most important fact 

 in the science, namely, that all bodies unite, chemically, in weights, or 

 multiples of weights, that have the same constant ratio to each other. 



23. Rej)ort to the Regents of the University of JVew York 

 Feb. 1830. — This is an interesting and instructive document; its plan 

 is excellent, as it unites copiousness, condensation and p^spicuity ; 

 indeed it is so difficult to make an analysis of vvliat is almost entirely 

 elementary, that we can do little more than speak of it in general terras. 

 It presents a view of all the colleges and incorporated academies, in 

 this great state ; tlie places in which they are— the number of stu- 

 dents, tlie value of the buildings and apparatus, the amount of funds, 

 the number and compensation of instructors, and the courses of stud- 

 ies. The academies are between fifty and sixty in number, besides 

 four colleges, and three medical schools, one of which is not however 



Vol. XVlU.~No. 2. 49 



