320 



Varieties. 



[M^RCtt, 



packed for sale, and used for any of the 

 purposes in the arts to which gall-nuts have 

 been heretofore applied. The quantity ob- 

 tained from the above will be about eight 

 or ten pounds. In using this substance, it 

 is only necessary to pound or otherwise 

 reduce it to powder, when it may be mixed 

 with other ingredients, as pulverized gall- 

 nuts. The same chemical properties be- 

 long to the sap of the chestnut-tree, which 

 may be extracted by tapping the trunk, 

 and when so obtained, employed for the 

 same purpose as the gall-nuts. This inven- 

 tion seems less useful for its intrinsic me- 

 rit, than for the hint it affords. 



M. Ferrer on the Comets of 1807-11-13. 

 In the first part of the third volume of 

 the Transactions of the Astronomical So- 

 ciety, which has just appeared, is recorded 

 one of the most extraordinary circumstances 

 in the annals of science. A Spanish gen- 

 tleman, Don Joze de Ferrer, employing 

 at first a reflecting circle, and subsequently 

 a sextant of Ramsden, was enabled by a 

 mean of some hundred observations , made 

 at Havannah, in the island of Cuba, to cal- 



culate the elements of the comets which 

 appeared in the years 1807-11-13, with as 

 much precision as was obtained from ob- 

 servations made at the finest observatories 

 in Europe, Such, indeed, wat; the accuracy 

 of the sextant (of seven inches radius), and 

 the skill of the observer, that, from his 

 own observations alone, he was enabled to 

 detect an error of 14" in the places of 

 Altair and a Cygni, which pervades all the 

 nautical almanacks, from 1802 to 1810. 

 We have recorded this circumstance as a 

 proof that large instruments are not indis- 

 pensable even in the present advanced state 

 of the science of astronomy, and in the 

 hope of inciting those who might otherwise 

 be discouraged, from the smallness of their 

 apparatus, to prosecute observations of the 

 celestial phenomena, with the assurance 

 that skill and assiduity, applied to instru- 

 ments of inferior size, will always furnish 

 results which need not fear competition 

 with any that can be obtained by Brinkley, 

 Bessel, or Pond, aided by the mechanical 

 genius of Ramsden, Reichenbach, or 

 Trougfyton. 



WORKS IN THE PRESS AND NEW PUBLICATIONS. 



WORKS IN PREPARATION. 



The Rev. H. Lendsay, A. M. is about to 

 publish Lectures on the Historical Books of 

 the Old Testament. 



The Author of "Hajji Baba," announces 

 a New Work, " Hajji Baba in England." 



The Public Economy of Athens, trans- 

 lated from the German of Augustus Boeckh. 

 In 2 vols. 8vo. 



Mr. H. G. Ward, late Charge d'Affaires 

 of His Britannic Majesty in Mexico, an- 

 nounces a Work, in 2 vols, 8vo., under the 

 title of " Mexico in 1827." 



The Man of Ton, a Satire. 



Commentaries on the Life and Reign of 

 Charles I. By J. D'Israeli, Esq. 



Pelham ; or, the Adventures of a Gen- 

 tleman. In 3 vols. post 8vo. 



The Kuzzilbash ; a Tale of Khorasan. 

 3 vols. post 8vo. 



East arid West; or, the Citizen's Sketch 

 Book. By one of the Authors of the Re- 

 jected Addresses. 2 vols. Small 8vo. 



Memoirs of the Life and Travels of John 

 Ledyard, the American Traveller. 1 vol. 8vo. 



St. Petersburg}! at the Close of 1827. By 

 Dr. Granville. 



Plans, Details, Views, &c., of the Great 

 Hall of the Royal Palace of Eltham. Mea- 

 sured, and delineated by H. Dunnage, and 

 C. Lavar, Architects. 



The Ledger of Notorious Rakes ; selected 

 from their Own Confessions, &c. 



Christian Experience ; or, a Guide to the 

 Perplexed. By Robert Phillips. 



The Impious Feast. A Poem, in Ten 



Books. By Robert Landor, M.A., Author 

 of the Count Arezzi, a Tragedy. 8vo. 

 A new edition. 



Poetry of the Anti-Jacobin. Fscp. 8vo. 

 A new edition. 



A Widowed Missionary's Journal. By 

 Keturah Jeffreys. 



A Second Series of Chronicles of the 

 Canongate, 3 vols., is nearly ready. 



Taking for Granted : a Novel. By Miss 

 Edge worth. 



The Epistle of Paul the Apostle to the 

 Romans, with an Introduction, Paraplijasc, 

 and Notes. By C. H. Terrot, A. M., late 

 Fellow of Trinity College, Cambridge. 



A Brief Enquiry into the Prospects of the 

 Christian Church, in connection with the 

 Second Advent of our Lord Jesus Christ. 

 By the Hon. and Rev. Gerard Noel, Curate 

 of Richmond, Surrey. 



Sermons. By the Rev. James Procter, 

 A. M., of Peter's College, Cambridge, 

 late Curate of Bentley, Hants, and Assistant 

 Minister of Farnham, Surrey. 



In the press, Researches in South Africa. 

 By the Rev. John Philip, D.D. 



The History of the Peninsular War. By 

 William F. P. Napier, C. B., LieuL-Col. 

 Half-pay, 43d Regiment. 



The Head-Piece ; or, Phrenology Oppos- 

 ed to Revelation. By James the Less ; 

 also, a Helmet for the Head-Piece ; or, 

 Phrenology Incompatible with Reason. By 

 Daniel the Seer. In 1 vol., 12mo. 



The Pleasant History of Friar Rush, 

 will form the Twelfth Part of Mr. W. J. 

 Thorn's Series of Early Prose Romances. . 



