Brief synopsis of the course of lectures in descriptive geometry; as arranged for the first year Faculty of Applied Science and Engineering, University of Toronto. [By] J. Roy Cockburn
A 1922 lecture synopsis in descriptive geometry by J. Roy Cockburn, issued by the University of Toronto Engineering Society for first-year applied science and engineering students. The plates are line diagrams of projected points and planes: ground lines, dotted projectors, dash-dot traces, and lettered points with prime marks, all captioned in hand-drawn block figure numbers usable as abstract linework, technical ornament, or lettering reference.
![Picture 1 of 20 from Brief synopsis of the course of lectures in descriptive geometry; as arranged for the first year Faculty of Applied Science and Engineering, University of Toronto. [By] J. Roy Cockburn (1922), leaf 7](https://img.insideoutlibrary.com/img/200/ia-fybriefsynopsiso00cockuoft-7-2.webp)
![Picture 2 of 20 from Brief synopsis of the course of lectures in descriptive geometry; as arranged for the first year Faculty of Applied Science and Engineering, University of Toronto. [By] J. Roy Cockburn (1922), leaf 7](https://img.insideoutlibrary.com/img/200/ia-fybriefsynopsiso00cockuoft-7-3.webp)
![Picture 3 of 20 from Brief synopsis of the course of lectures in descriptive geometry; as arranged for the first year Faculty of Applied Science and Engineering, University of Toronto. [By] J. Roy Cockburn (1922), leaf 7](https://img.insideoutlibrary.com/img/200/ia-fybriefsynopsiso00cockuoft-7-6.webp)
![Picture 4 of 20 from Brief synopsis of the course of lectures in descriptive geometry; as arranged for the first year Faculty of Applied Science and Engineering, University of Toronto. [By] J. Roy Cockburn (1922), leaf 12](https://img.insideoutlibrary.com/img/200/ia-fybriefsynopsiso00cockuoft-12-7.webp)
![Picture 5 of 20 from Brief synopsis of the course of lectures in descriptive geometry; as arranged for the first year Faculty of Applied Science and Engineering, University of Toronto. [By] J. Roy Cockburn (1922), leaf 14](https://img.insideoutlibrary.com/img/200/ia-fybriefsynopsiso00cockuoft-14-10.webp)
![Picture 6 of 20 from Brief synopsis of the course of lectures in descriptive geometry; as arranged for the first year Faculty of Applied Science and Engineering, University of Toronto. [By] J. Roy Cockburn (1922), leaf 16](https://img.insideoutlibrary.com/img/200/ia-fybriefsynopsiso00cockuoft-16-11.webp)
![Picture 7 of 20 from Brief synopsis of the course of lectures in descriptive geometry; as arranged for the first year Faculty of Applied Science and Engineering, University of Toronto. [By] J. Roy Cockburn (1922), leaf 16](https://img.insideoutlibrary.com/img/200/ia-fybriefsynopsiso00cockuoft-16-12.webp)
![Picture 8 of 20 from Brief synopsis of the course of lectures in descriptive geometry; as arranged for the first year Faculty of Applied Science and Engineering, University of Toronto. [By] J. Roy Cockburn (1922), leaf 18](https://img.insideoutlibrary.com/img/200/ia-fybriefsynopsiso00cockuoft-18-13.webp)
![Picture 9 of 20 from Brief synopsis of the course of lectures in descriptive geometry; as arranged for the first year Faculty of Applied Science and Engineering, University of Toronto. [By] J. Roy Cockburn (1922), leaf 19](https://img.insideoutlibrary.com/img/200/ia-fybriefsynopsiso00cockuoft-19-14.webp)
![Picture 10 of 20 from Brief synopsis of the course of lectures in descriptive geometry; as arranged for the first year Faculty of Applied Science and Engineering, University of Toronto. [By] J. Roy Cockburn (1922), leaf 20](https://img.insideoutlibrary.com/img/200/ia-fybriefsynopsiso00cockuoft-20-15.webp)
![Picture 11 of 20 from Brief synopsis of the course of lectures in descriptive geometry; as arranged for the first year Faculty of Applied Science and Engineering, University of Toronto. [By] J. Roy Cockburn (1922), leaf 20](https://img.insideoutlibrary.com/img/200/ia-fybriefsynopsiso00cockuoft-20-16.webp)
![Picture 12 of 20 from Brief synopsis of the course of lectures in descriptive geometry; as arranged for the first year Faculty of Applied Science and Engineering, University of Toronto. [By] J. Roy Cockburn (1922), leaf 22](https://img.insideoutlibrary.com/img/200/ia-fybriefsynopsiso00cockuoft-22-17.webp)
![Picture 13 of 20 from Brief synopsis of the course of lectures in descriptive geometry; as arranged for the first year Faculty of Applied Science and Engineering, University of Toronto. [By] J. Roy Cockburn (1922), leaf 22](https://img.insideoutlibrary.com/img/200/ia-fybriefsynopsiso00cockuoft-22-18.webp)
![Picture 14 of 20 from Brief synopsis of the course of lectures in descriptive geometry; as arranged for the first year Faculty of Applied Science and Engineering, University of Toronto. [By] J. Roy Cockburn (1922), leaf 23](https://img.insideoutlibrary.com/img/200/ia-fybriefsynopsiso00cockuoft-23-19.webp)
![Picture 15 of 20 from Brief synopsis of the course of lectures in descriptive geometry; as arranged for the first year Faculty of Applied Science and Engineering, University of Toronto. [By] J. Roy Cockburn (1922), leaf 24](https://img.insideoutlibrary.com/img/200/ia-fybriefsynopsiso00cockuoft-24-20.webp)
![Picture 16 of 20 from Brief synopsis of the course of lectures in descriptive geometry; as arranged for the first year Faculty of Applied Science and Engineering, University of Toronto. [By] J. Roy Cockburn (1922), leaf 24](https://img.insideoutlibrary.com/img/200/ia-fybriefsynopsiso00cockuoft-24-21.webp)
![Picture 17 of 20 from Brief synopsis of the course of lectures in descriptive geometry; as arranged for the first year Faculty of Applied Science and Engineering, University of Toronto. [By] J. Roy Cockburn (1922), leaf 25](https://img.insideoutlibrary.com/img/200/ia-fybriefsynopsiso00cockuoft-25-22.webp)
![Picture 18 of 20 from Brief synopsis of the course of lectures in descriptive geometry; as arranged for the first year Faculty of Applied Science and Engineering, University of Toronto. [By] J. Roy Cockburn (1922), leaf 26](https://img.insideoutlibrary.com/img/200/ia-fybriefsynopsiso00cockuoft-26-23.webp)
![Picture 19 of 20 from Brief synopsis of the course of lectures in descriptive geometry; as arranged for the first year Faculty of Applied Science and Engineering, University of Toronto. [By] J. Roy Cockburn (1922), leaf 27](https://img.insideoutlibrary.com/img/200/ia-fybriefsynopsiso00cockuoft-27-24.webp)
![Picture 20 of 20 from Brief synopsis of the course of lectures in descriptive geometry; as arranged for the first year Faculty of Applied Science and Engineering, University of Toronto. [By] J. Roy Cockburn (1922), leaf 28](https://img.insideoutlibrary.com/img/200/ia-fybriefsynopsiso00cockuoft-28-25.webp)