We formulate an integro-difference model to predict the growth and spatial
spread of a perennial plant population with an age-structured seed bank. We allow
the seeds in the bank to be of any age, producing an infinite system of equations.
The...
The Chautauqua movement has been called "culture under canvas" and "the university of the people." What began as a training camp for Sunday School teachers on the shores of Lake Chautauqua in western New York State in the...
All terrain vehicles--Automatic control; Motor vehicles--Automatic control; Intelligent control systems
When tracked vehicles traverse terrain such as sand, soil, or even concrete,
they may encounter a variance in density or viscosity of the medium that the
vehicle is traveling along. When this happens, one track begins to move faster or
slower...
Four men holding musical instrument cases stand at the caboose of the Louisville Special train. Each man wears a suit, a coat, and either a hat or cap and each has medals pinned to their suit coats. Another man in a suit, hat and double-breasted...
Side wheelers; Steamboats; Boat & ship industry; Howard Ship Yards and Dock Company
ALTON, a side-wheel excursion boat with wood hull (241.1 ft. x 38 ft. x 7.3 ft.), was built at Howard in 1906. Owned by Eagle Packet Company in St. Louis, ALTON operated on the Mississippi River between St. Louis and Alton, Illinois. She had a...
Olmsted, Frederick Law, 1822-1903; Trees; Roads; Fences; Street lights; Automobiles; Hills; Parks
Dirt road, possibly Taylor Boulevard, in or near Jacob's Park in Louisville, Ky. Road is lined with trees, a fence, and streetlights. A car is seen in the distance traveling towards a large hill. The park was designed by Frederick Law Olmsted, Sr....
Full-length portrait of four little people (two men and two women) in wedding attire. This may be a portrait of the actual "General Tom Thumb" (Charles Sterwood Stratton, 1838-1883), a dwarf who became famous traveling in P.T. Barnum's...
Portrait of left profile of performer Frank J. McIntyre wearing a pin-stripe suit jacket. Born in 1879 in Ann Arbor, Michigan, McIntyre died in 1949. His inscription references the "Chili Con Carne Club," which was a men's poker group...
An unidentified man poses on a horse or mule on a hill overlooking a small town. The town is probably Oneida, Kentucky. And the man may be a doctor traveling with Dr. Stuckey, who is seen in a similar pose in ULPA 1982.01.360a.p. Handwritten on...
Woodblock prints of, clockwise from top left: cows drinking from stream by mill; man on horse talking to man standing by fence with shovel; men on horseback passing through jungle populated by snakes, monkeys, birds, and leopards; number 10; child...
Woodblock prints of, from top to bottom starting at left (all images signed "Hartwell" unless otherwise noted): Sardanapalus (Assyrian king) seated on throne holding a goblet aloft, with men and women in attendance; scene in city square;...
This set of woodblock prints was reprinted in the 1980s. With the exception of the fox hiding from dog behind a log, the boy carving a Jack o'lantern, the blackbird, the turkey and snake, and the laborers on the riverfront, the images duplicate the...
City & town life; Elevated railroads; Street railroads; Railroads; Pedestrians; People
View of streets and elevated railroad tracks in New York City. Buildings line the streets on the right, while the railroad tracks run perpendicular to the streets. Carriages, streetcars, and pedestrians are on the streets. Trains run on the tracks....
Large factory room filled with locomotive cars being built. Title: 7090 - General View of the Erecting Shop, Baldwin Locomotive Works, Philadelphia, Pa. Text on left: Keystone View Company. Copyrighted. Manufacturers. Publishers. Made in U.S.A....
Locomotive traveling on swing span of a swing bridge directly towards the photographer. A plaque is on one side of the span and a small structure sits on the opposite side of the tracks. The opposite shore is in the background. Title supplied by...
A woman walks in the direction of two men standing near a large pool of water. This is a southeasterly view from Stansbury Park across Third Street near the intersection with Eastern Parkway. Patterson Hall is on the left and the railroad bridge...
