11 



SCIENTIFIC NEWS. 



SANITATION: 



f 



[July 6, 1838. 



VENTILATION, 



»♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦»♦♦♦♦* 



The Sanitary Engineering Go. 



are SPECIALISTS in 



House Drainage and Ventilation. 



They send Experts to Survey and give Estimates for 

 necessary DRAINAGE IMPROVEMENTS, etc., 

 either in Town or Country. 



Certificate and Correct Plan of Drains given when the 

 work is finished. 



They also undertake VENTILATION and HOT 

 WATER WORK. 



115, Victoria Street, Westminster. 



Telegrams: "SANITATION, LONDON." 



J 



HARTLEY & SUGDEN 



!L.IlVriTEI> 5 



ATLAS BOILER WORKS 



HALIFAX, 



Manufacturers of 



WELDED AND RIVETED 



STEAM AND HOT WATER 



BOILERS 



FOR ALL PURPOSES, 



GAS BOILERS, 



STOVES, 



Valves, etc., etc. 



Catalogue (ioo pages) on 

 application. 



32 FIRST-CLASS AWARDS IN 14 YEAP 



THE CARLTON ENGINEERING COMPANY. 



Patentees and Sole Manufacturers of the 



CLAJR.T-iTOJST HIG-H SPEED ZEUSTO-IILSriE, 



For Driving Dynamos, Fans, Centrifugal Pumps, Launches, etc. Manufacturers of Pumps, Steam and Hand Winches. 



.also all kinds of Specialities for Patentees and others. 

 LAUNCH BUILDERS, BOILER MAKERS, MARINE AND GENERAL ENGINEERS. 

 Contractors for Bridge and Girder Work. Also for Shipping and other repairs. 



Works : GLENGALL ROAD, MILLWALL, LONDON, E. 



City Offices: 1S5, Fenehureh Street, London 



F. WIGGINS &, SONS, XO, Tower- Hill, X^OCTDOCT, E., 



IMPORTERS AND MERCHANTS, 

 Manufacturers of Mica Goods for Philosophical and ALL purposes. 



CONTRACTORS TO HEK MAJESTY'S GOVERNMENT. 



MICA 



JOHNSON & PHILLIPS, 



ENGINEERS ANX> ELECTRICIANS. 



Offices : 14, UNION COURT, OLD BROAD ST., E,0. Works ; CHARLTON, KENT. 



Telegraphic Address: JUNO, LONDON. 

 United Telephone Exchange, No. 1010. Private Wire City Offices to Works. 



Manufacturers of Telegraph Appliances and Materials for Making and Laying Submarine and Underground Cables. 



