Party to Natal—The march—Action at Congella—Boers attack the 384 camp—Then besiege it—Sortie on the Boers' trenches—Incidents—Privations—Conduct of the detachment; courageous bearing of sergeant Young—Services of the party after hostilities had ceased—Detachment to the Falkland Islands—Landing—Character of the country—Services of the party—Its movements; and amusements—Professor Airy’s opinion of the corps—Fire at Woolwich; its consequences—Wreck of the 'Royal George'—Classification of the divers—Corporal Harris’s exertions in removing the wreck of the ‘Perdita’ mooring lighter—Assists an unsuccessful comrade—Difficulties in recovering the pig-iron ballast—Adventure with Mr. Cussell’s lighter—Isolation of Jones at the bottom—Annoyed by the presence of a human body; Harris, less sensitive, captures it—The keel—Accidents—Conflict between two rival divers—Conduct of the sappers employed in the operation—Demolition of beacons at Blythe Sand, Sheerness—Testimonial to sergeant-major Jones for his services in connection with it 1842. Draft to Canada—Company recalled from thence—Its services 401 and movements—Its character—Labours of colour-sergeant Lanyon—Increase to Gibraltar—Reduction in the corps—Irish survey completed; force employed in its prosecution—Reasons for conducting it under military rule—Economy of superintendence by sappers—Their employments—Sergeants West, Doull, Spalding, Keville—Corporals George Newman, Andrew Duncan—Staff appointments to the survey companies—Dangers—Hardships—Average strength of sapper force employed—Casualties—Kindness of the Irish—Gradual transfer of sappers for the English survey—Distribution; Southampton 1843. Falkland Islands; services of the detachment 412 there—Exploration trips—Seat of government changed—Turner’s stream—Bull-fight—Round Down Cliff, near Dover—Boundary line in North America—Sergeant-major Forbes—Operations for removing the wreck of the 'Royal George'—Exertions of the party—Private Girvan—Sagacity of corporal Jones—Success of the divers—Exertions to recover the missing guns—Harris’s nest—His district pardonably invaded—Wreck of the 'Edgar,' and corporal Jones—Power of water to convey sound—Girvan at the ‘Edgar’—An accident—Cessation of the work—Conduct of the detachment employed in it—Sir George Murray’s commendation—Longitude of Valentia—Rebellion in Ireland—Colour-sergeant Lanyon explores the passages under Dublin Castle—Fever at Bermuda—Burning of the ‘Missouri’ steamer at Gibraltar—Hong-Kong—Inspection at Woolwich by the Grand Duke Michael of Russia—Percussion carbine and accoutrements 1844.