[ 22 ] 
Presents. 
ISECCHI (A., For. Mem. R.S.) Sulla Ecelisse Solare del 18 Luglio 1860. Dis- 
corso letto aUa Pontifieia Accademia Tiberina. 4to. Soma 1860. 
SEGUIX (M.) Origine et Propagation de la Force. 8vo. Paris 1859. 
Considerations sur les Lois qni president a Paecomplissement 
des Phenomenes natiirels rapportes a I’attraction Neutonienne. 8vo. Paris 
1861. 
SHADMELL (Cajjt. F. A.) Tables for facilitating the Ecduction of Lunar 
ObseiTations. 8ro. London 1800. 
Notes on the Management of Chronometers and the 
Measurement of Merithan Distances. 8to. London 1861. 
SHAEPE (B.) Tables for ascertaining the distance of Objects either afloat or 
on shore. 8vo. 
SLOMAX (H.) The Claim of Leibnitz to the Invention of the Differential Cal- 
culus. 4to. Cambridge 1860. 
SMEE (M. E.) Tliree Letters to the Chancellor of the Exchequer. 8vo. 
SMTTH (tv. H., E.E.S.) Letter on a ‘ Double-faced’ Brass in Stone Church ; 
with a few General Eemarks on the Desecration and Eobheries in Sacred 
Edifices. Svo. 1860. 
Sketch of the Ease and Progress of the Eoyal Society 
Club. 4to. London 1860. (Printed for private distribaition.) 
SPIXELLI (A.) Degli Archivi Xa^iolitani Eagionamento. 4to. Napoli 1845. 
SPITZEE (S.) Studien iiber die Integration linearer Diflerenzial-Gleichungen. 
Svo. IFiVa 1860. 
STAIXTOX (H. T.) The Xatural History of the Tineina. Vol. V. containing 
Coleophora. Part 2. Svo. London 1860. 
STAS ( J. S.) Eecherches sur les Eapports reciproques des Poids Atomiques. Svo. 
Bruxelles 1860. (Excerpt from Bull. Acad. Sci. Belg.) 
STATELET (Miss) Observations on the Xeuration of the Hind Wings of Hy- 
menopterous Insects, and on the Hooks which join the Fore and Hind Wings 
together in Flight. 4to. London 1860. 
STOEEE (F. H.) On the Alloys of Copper and Zinc. 4to. Cambridge (U.S.) 
1860. (Exceaqat from Mem. Amer. Acad.) 
STEETE (0.) Eesultats des Observations faites sur des etoiles doubles artifi- 
cielles. Svo. 1857. 
Eecueil de Memoires presentes a TAcademie des Sciences par 
les Astronomes de Poulkova, on offerts a rObseiwatoire central par d’autres 
Astronomes du pays. Yol. II. 4to. St. PHersbourg 1859. 
— Librorum in Bibliotheca Speculae Pulcovensis anno 1858 
exeunte contentorum Catalogns Systematicus. Svo. Petropoli 1860. 
Eloge de P. H. Fuss. 4to. St. Petersbourg 1857. (Excerpt 
from Compte Eendu 1856.) 
— XouveUe Determination de la ParaEaxe AnnneUe des Etoiles 
a Ljuje et 61 Cygni. 4to. St. Petersbourg 1859. (Excerpt from Mem. Acad. 
Sci.) 
Beitrag zur FeststeUung des Verhaltnisses von Keppler zu 
T'anenstein. 4to. St. Petersbourg 1860. 
TODHFXTEE, (I.) A History of the Pi’ogress of the Calculus of Variations 
during the Xineteenth Century. Svo. Cambridge and London 1861. 
Donors. 
The Author. 
The Author. 
The Author. 
The Author. 
The Author. 
The Author. 
The Author. 
The Author. 
The Club. 
Sir Woodbine Parish, F.E.S. 
The Author. 
The Author. 
The Author. 
The Authoress. 
The Author. 
The Author. 
The Observatoiy. 
The Author. 
