Sunclocks: Paper Sundials to Make and Use Publisher: Jvt Publications | English | June 1999 | ISBN: 1893812510 | PDF | 56 pages | 11.2Mb Make sundials that really work! Sunclocks includes directions for finding north using 2 different methods as well as some brief historical background on sundials. The book contains 3 types of sundials representing 9 latitudes covering most major U.S. cities. The heavy paper instruction and sundial parts pages are perforated for easy removal. For ages 10 and up.