Engineering contracts and specifications, including a brief synopsis of the law of contracts and illustrative examples of the general and technical clauses of various kinds of engineering speicfications, designed for the use of students, engineers, and contractors T Technology
The progress of photography since the year 1879. A review of the more important discoveries in photography and photographic chemistry, within the last four years, with special consideration of emulsion photography, and an additional chapter on photography for amateurs T Technology
