duced by a new and rapid humid process; yellow chro-mate, and red dichromate of lead, for which they receivedHonourable Mention.
M. Saluce, of Sardinia (10, p. 1302), obtained Honour-able Mention for his pharmaceutical collection, whichincluded a series of stearoptens, well crystallized fromoil of peppermint and other essential oils.
— Saxin, of the Government of Kaluga, Russia (28,p. 13(37), received a Prize Medal for salts of lead of goodquality, which he contributed, together with a small col-lection of other chemical products.
Ambrosio Saanto, of Matauzas, Cuba, Spain (242, p.1344), exhibited an interesting collection of pharmaceu-tical preparations, which received Honourable Mention.
W. Sattler, of Schweinfurt, Bavaria (14, p. 1099),received Honourable Mention for a rich assortment oflac colours and other pigments.
J. Setzer, of Weiteneggk, on the Danube (23, p.1008), represented the manufacture of ultramarine inAustria . He also exhibited the yellow sulphide of cad-mium of great purity and intensity; with a collection ofmadder colours. An Honourable Meution has beenawarded to him.
Savory and Moore (115, p. 199) exhibited kousso,imported from Aden, also sumbttl, or musk-root, supposedto be the produce of an umbelliferous plant of Central jAsia, the introduction of which into pharmacy in thiscountry is due to the exhibitors.
C. Schlippe, of Moscow, Russia (27, p. 13G7), had thePrize Medal accorded to him for superior prussiate of !potash and alum. This exhibitor is known in science ;as the discoverer of the crystallized sulphostibite of Isodium (NaS . SbS 3 ), and manufactures on a large scale.His chemical products are much esteemed in Russia .Besides those mentioned, the collection contained saltsof tin; oxalic, tartaric, and acetic acids.
Schilling and Sutton, of Brighton (52, p. 193),exhibited samples of the soda, Seltzer, and Fachingenwaters manufactured bv them.
Struve and Co., of Brighton (52a, p. 193), exhibitedspecimens of the artificial mineral waters which theyhave long manufactured with so much accuracy, namely,waters of similar composition to the spriugs at Spa,Pyrmont, Marienbad, Kissingen , Seltzer, Fachingen,Piilina, and Vichy. These factitious chalybeates aresaid to contain carbonate of iron in solution, whereasin those imported a part or the whole is precipitated.
Schruck and Uhlich, of Bamberg, in Bavaria (15,p. 1099), received Honourable Mention for ultramarineof superior quality.
Schur and Koiiring, of Braudenberg, contributedpure tartaric acid, well crystallized, and also in finepowder.
L. Scott (61, p. 194) had the Prize Medal accorded to jhim for white oxide of zinc, manufactured as a substitute jfor white lead.
H. Siegle, of Stuttgard (6, p. 1114), was awarded thePrize Medal for an assortment of rich and pure red lakes.
Selopsis Brothers, of Turin and Brozzo (Ivree) (4,p. 1302), sustained the chemical reputation of Sardinia by the exhibition of a collection of salts, sulphur, salt- 1petre, and acids. They also exhibited fine samples ofphosphorus.
Serzedello and Co., of Portugal (17, 33, &c., p. 1308),exhibited a full series of well-prepared salts, and other jchemical products. I
A. Scharenbekg, of Xeustrelitz, Mecklenburg Strelitz (3, p. 1134), exhibited a fine assortment of madder-lakes, *prepared by a new process, which it is said resist theaction of light; for which a Prize Medal was awarded. 1
A. E. Sch.hersahl (9, p. 187) exhibited differentvarieties of ultramarine of fine quality, for which a PrizeMedal was awarded to him.
T. and H. Smith, of Edinburgh (94, p. 197), had thePrize Medal accorded to them for aloin, the catharticprinciple of aloes, first prepared by them; and for ean-tharidin, of which a large quantity was exhibited incrystals. ;
— Sorel, of Crenelle, near Paris (1020, p. 1227), !obtained the Prize Medal for his various qualities of oxide j
of zinc. M. Sorel has contributed most materially to theI rapid advance which the oxide of zinc has lately madein France and elsewhere, as a substitute for white-lead.
! Messrs. Spence and Dixon, of Pendleton Alum Works,j near Manchester (7, pp. 185, 186), received Honourablej Mention for their alum, prepared from gray schist by theaction of sulphuric acid aud the addition of sulphate of! ammonia. Sulphate of iron, prepared by combining sul-, phuric acid directly with the residuary oxide of iron of| burnt pyrites, was also exhibited; together with a hv-! draulie cement prepared from the refuse gas-lime, united: with the refuse of the shale, after the alumina has beenj extracted; and the refuse of Wicklow pyrites, after itsi use in the manufacture of sulphuric acid—from this
1 latter substance the mortar obtains oxide of iron. Themetallic salts present are said to prevent the growth ofmoss upon the surface of this cement.
John Alexander Spencer (31, p. 190) had the PrizeMedal accorded to him for the various products of hischemical manufactory, including naphthaline, sulphate ofmagnesia, benzoic acid, hydriodate of quinine, and samplesof cod-liver oil, which have kept their colour well for oneor two years.
T. Spurgin, of Saffron Walden (38, p. 191), exhibitedthe roots, stems, flowers, and stigmata of saffron.
Peter Squire (93, p. 197) was awarded the PrizeMedal for a variety of pharmaceutical extracts and pre-served juices of medicinal plants prepared with greatcare; and for other chemical products.
Henry Stevens (74, p. 195) exhibited samples of dealstained in an ornamental manner, by colours manufacturedby himself.
J. C. Stevenson, of the Jarrow Chemical Works,South Shields (122, p. 199), illustrated the crystallizationof carbonate of soda by a magnificent specimen of thatsalt, which was received too late to be placed amongthe articles referred to the Jury.
William Stevenson, of the Jarrow Chemical Works( 20 , p. 189), received Honourable Mention for bicarbonateof soda, prepared by exposing crystals of soda to carbonic. acid gas.
! Stoiimann and Wustenfeld, of the Chemical Manu-| factory of Neusalzwerk (460, p. 1077), had the Prize: Medal accorded to them. They operate chiefly upon themother-liquor of salt springs, as at the older establish-ment of Shbnesbeck. The great variety of substaucesproduced in Germany at the same works may be judgedof by the following enumeration of the articles exhibitedby this house, with their respective prices. The thalermay be taken at 2s. l()d., and contains 30 sgrs.; the sgr.will be equal to 1'33 of a penny :—
Pure sulphate of zinc, per lb., 3j sgr. Acetic acid(1*040 and 1*000), phosphoric acid, chloroform, respec-tively 26 sgr., 1 thaler 13^ sgr., and 1 thaler 25 sgr.per lb. Nitric, sulphuric, purified hydrochloric acid(1*120); per 100 lbs., respectively 10, 12^, and 5 thalers.Carbonate of soda (99*95, and 99 per cent, pure car-bonate) ; per 100 lbs., 7, 6^-, aud 6 thalers 5 sgr. Dittocrystallized, pure crystallized, and sesquicarbonate ofsoda; per 100 lbs., respectively 2 thalers 25 sgr., 10thalers, and 8 thalers. Sulphate of soda; per 100 lbs.,1^ thaler and 2 thalers. Ditto purified; per 100 lbs.,
4 thalers 1 sgr. Hyposulphite of soda, per lb., 8 sgr.Nitrate of soda; per 100 lbs., 11 thalers. Seiguette salt,per lb., 7ij sgr. Acetate of potash, purified, per lb.,sgr. Carbonate of potash, per 100 lbs., 14 thalersand 30 thalers. Ditto purified, per lb., 1 thaler. Prus-siate of potash, per lb., 20 sgr. Sulphate of potash, per100 lbs., thalers; crystallized, 40 thalers. Cyanide ofpotassium, prepared according to the process suggestedby Liebig, per lb., 1 thaler 10 sgr. Soda-salt, of thesalt water of Rehrne, per 100 lbs., 3 thalers; mother-lye,of the same, 180 quarts, 5 thalers. Bleaching powder,100 lbs., 6 thalers. Sulphate of soda; per 1,000 lbs.,
2 thalers 5 sgr.
Stratingh and Co., of Groningen, Holland (3, p. 1142),old makers of white-lead by the Dutch method, obtainedHonourable Mention for the superior quality of theirsamples.