- Herschel, Sir J
- mentions Nasmyth
- his character
- letter from regarding 'willow leaf' objects on Sun
- visit from
- visited
- Miss
- letter from
- Hick, Bolton
- Hill, D. O.,
- Household management
- Hugo de Lupus
- Huguenots in Edinburgh
- Humphries (Dennison and Co.)
- Humphries, Francis
- Hutton, James
- Hydraulic mattress press
- Indret, marine factory
- Infusoria, Bridgewater Canal
- Inversnaid Fort
- Iron
- Iron steamboat, first
- Irving, Washington
- Italy, visits to
- Ivy screening
- Izak Church, St. Petersburg
- Jardine, James
- Joint, Flexible
- Kenilworth, ruins of
- Kennedy, John