Institute of Arts and Sciences, 367 High St. Incorporated 1910. Merging of Newark University Courses, given 1909, and College Extension Courses given for several years. To meet widespread demand for courses of university grade in Newark and nearby towns. Has co-operative support of New York University which supplies Institute with regular members of the N. Y. U. instructional staff. Credits courses taken for degrees in Washington Square College of N. Y. U.
Italian Language: 3 year study course introduced at Barringer High School, Feb. 1, 1919.
Jitneys: Or passenger auto-buses. First run in spring of 1916. 349 in operation July, 1919. Name originated in California, where a 5 cent piece, the fare, is commonly known as a "jitney".
| Receipts | Tax | Passengers | |
| 1916 (7 months) | $133,043.22 | $ 5,556.92 | 2,660,963 |
| 1917 | 409,774.86 | 17,332.74 | 8,195,491 |
| 1918 | 855,832.82 | 36,151.22 | 17,120,652 |
| 1919 (7 months) | 959,473.69 | 39,940.61 | 19,189,472 |
Junior College: Established at South Side High School with 50 students Sept., 1918. Public school system thus extended to include the first two years of regular college course.
Junior High Schools: Established at Robert Treat, Madison and Cleveland Schools, Sept., 1917. 9th grade, equivalent to 1st year high school, added to grammar course, with departmental system in 7th and 8th grades. Experiment of teaching modern languages as early as the 7th grade tried with success, 1919.
Junior Museum Club: Founded June, 1916, by boy and girl delegates from 8B public school classes and members of the Irvington Museum Assoc., under leadership of Dr. Henry H. Rusby, of Newark, and the staff of the Newark Museum Assoc. Purpose: to collect and to study animals, insects, aquatic life, birds, botany, mineralogy, stamps and coins, electricity, photography, etc. Membership open to any boy or girl between 10 and 18 years of age. Affiliated with the Newark Museum Assoc. Headquarters, Public Library building.
Juvenile Court: See [Delinquent Children].
Juvenile Delinquency: See [Delinquent Children].