A catalogue of philosophical, astronomical, chemical and electrical apparatus
A mid-nineteenth-century trade catalogue of scientific apparatus compiled by Joseph Milner Wightman and printed in Boston in 1846, offered to buyers such as schools, lecturers and laboratories. Its engravings show air pumps, electrical machines, and electromagnetic and thermoelectric instruments drawn in fine black line with dense hatching on brass and wood, a clear model for technical diagrams, machine drawings and vintage science-equipment graphics.
