Antique W M Welch Scientific Co botany lantern slide set contained in a black locking case. The case measures approximately 12 inches high, 11 inches wide, and 4 1/2 inches deep, and shows signs of soiling. Two slides are missing from the set. Included slides provide labeled illustrations and photographs on botanical subjects such as Spermatophytes, Ginko Family, Yellow-Barked Oak, and Roots Upturned. The original catalog booklet is also included. This collection showcases detailed educational content prepared by the W M Welch Scientific Company, established in Chicago.