SOS.lJ-z. 



A WEEKLY ILLUSTRATED JOURNAL OF SCIENCE. 



NEWTON & CO.'S GARDEN SUN-DIALS. 



OPTICIANS TO THE QUEEN &^ GOVERNMENT 

 3 FL EET STREET, LONDO N. 



N EW GAS FURNACE 



(Holloways Patent) 



FOR CHEMISTS AND ASSAYERS. 



A 



THE NO. I VICTORIA" HAND CAMERA. 



best quality with 



Iris Diaphragm. 



The shutter is 



arranged for time 



ous exposures, 

 and can be regu- 

 lated at varying p^jce, 



JAMES WOOLLEY. SONS & CO., 



VICTORIA BRIDGE. MANCHESTER. 



Complete Catalogue on application. - 



ered in best quahi 



NEGRETTI & ZAMBRA'S 



„..:iq 



'IMPROVED 



PAKTS SEPARATE. LESS CRACKING. 



All particulars from SOLE MAKERS: 



JOHN J. GRIFFIN & SONS.Ld. 



20-26 SARDINIA STREET, LONDON, W,C. 



SELF-RECORDING 



RAIN GAUGE. 



DESCRIPTIVE 



PRICE LIST 



POST FREE. 



1\VKN1I-,II AMI \IAI)K OM.V KV 



NEGRETTI & ZAMBRA, 



Scientific Instrument Makers to Her Majesty tlie Queen, 



38 HOLBORN VIADUCT, E.C. 



JiLinchcb- 45 CoKNHH.i., E.G., and 122 Regent Stkeet, W. 



