Activity of brainstem cholinergic neurons during 22 kHz ultrasonic vocalization in rats /

Adult rats emit 22 kHz ultrasonic alann calls in aversive situations. This type of call IS a component of defensive behaviour and it functions predominantly to warn conspecifics about predators. Production of these calls is dependent on the central cholinergic system. The laterodorsal tegmental nucleus (LDT) and pedunculopontine tegmental nucleus (PPT) contain largely cholinergic neurons, which create a continuous column in the brainstem. The LDT projects to structures in the forebrain, and it has been implicated in the initiation of 22 kHz alarm calls. It was hypothesized that release of acetylcholine from the ascending LDT terminals in mesencephalic and diencephalic areas initiates 22 kHz alarm vocalization. Therefore, the tegmental cholinergic neurons should be more active during emission of alarm calls. The aim of this study was to demonstrate increased activity of LDT cholinergic neurons during emission of 22 kHz calls induced by air puff stimuli. Immunohistochemical staining of the enzyme choline acetyltransferase identified cell bodies of cholinergic neurons, and c-Fos immunolabeling identified active cells. Double labeled cells were regarded as active cholinergic cells. There were significantly more (p

American Library Association, twenty-fifth annual conference, Niagara Falls, June 22-27, 1903. --

A history of Niagara Falls, including the Programme for the Conference.

Second Welland Canal - Book 2, Survey Map 6 - Locks 19, 20, 21 and 22 in Grantham

Survey map of the Second Welland Canal created by the Welland Canal Company showing south Merritton along the boundary between the Grantham and Thorold Townships. Identified structures associated with the Canal include Locks 19, 20, 21, and 22, Lock Tenders House, and the towing path. The surveyors' measurements and notes can be seen in red and black ink and pencil. Local area landmarks are also identified and include streets and roads (ex. Pine Street and Macadamized Road), J. Brown Cement Mill, W. B. Hendershot Saw Mill, W. Parnall Spoke and Sash Factory, W. Beatty Saw Mill, W. Beatty Tannery, a number of structures (possibly houses) belonging to: Mrs. Aikins, J. Battle, and E. Keefer, and a foundry, smithy, and machine shop (all of which possible belonged to J. Dobbie). Properties and property owners of note are: Concession 10 Lots 9 and 10, W. C. Loan Company, P.H. Ball, and J. Keefer. Two small properties belonging to W. B. Hendershot and W. Beatty exist and are outlined in red. A half acre property reserved for a lock lot exists and is outlined in blue. An additional property reserved for a quarry is also identified, but not outlined.

The Gleaner and Niagara Newspaper, January 22, 1818

The Gleaner and Niagara Newspaper was a weekly paper in the town of Niagara-on-the-Lake that began publication December 4, 1817 and ceased in 1830. This bound volume has been divided by publication dates. Other dates included in the volume are: 1817 December 18 1817 December 25 1818 January 1 1818 January 8 1818 January 15 There is also a letter that was found inside the bound volume written by Andrew Heron on October 1 1817.

The Weekly Register Vol. V, No. 21, Whole No. 125- January 22, 1814

The Weekly Register, also known as Niles Weekly Register, was a weekly periodical edited by Hezekiah Niles (1777-1839) and published in Baltimore Maryland. Volumes of interest were published between 1811 (Vol. 1, No. 1, September 7, 1811) to 1814 (Vol. 5, No. 26, February 26, 1814). These volumes focus primarily on 19th century politics and government in the United States of America. Niles edited and published the Weekly Register until 1836, making it one of the most widely-circulated magazines in the United States. The popularity also made Niles into one of the most influential journalists of his day. Devoted primarily to politics, Niles' Weekly Register is considered an important source for the history of the period. The Register also recorded current economics, technology, science, medicine, geography, archaeology, the weather, and stories of human interest. This issue is part of a bound book titled the Weekly Register 1812-1814. Pages are divided as follows: November 14, 1812- Pages 161-174 January 22, 1814- Pages 337-352 July 30, 1814- Pages 361-376 Look for other issues of the Weekly Register within the website.

The Weekly Register Vol. VI, No. 22, Whole No. 152- July 30, 1814

The Weekly Register, also known as Niles Weekly Register, was a weekly periodical edited by Hezekiah Niles (1777-1839) and published in Baltimore Maryland. Volumes of interest were published between 1811 (Vol. 1, No. 1, September 7, 1811) to 1814 (Vol. 5, No. 26, February 26, 1814). These volumes focus primarily on 19th century politics and government in the United States of America. Niles edited and published the Weekly Register until 1836, making it one of the most widely-circulated magazines in the United States. The popularity also made Niles into one of the most influential journalists of his day. Devoted primarily to politics, Niles' Weekly Register is considered an important source for the history of the period. The Register also recorded current economics, technology, science, medicine, geography, archaeology, the weather, and stories of human interest. This issue is part of a bound book titled the Weekly Register 1812-1814. Pages are divided as follows: November 14, 1812- Pages 161-174 January 22, 1814- Pages 337-352 July 30, 1814- Pages 361-376 Look for other issues of the Weekly Register within the website.

National intelligencer, 22 May 1813 (vol. 13, no. 1977) - Newspaper

Volumes of interest were published between 1812 and 1815 with articles about the War of 1812. Issue for May 22, 1813 includes a letter of May 9th from Gen. W. H. Harrison to the Sec. of War, stating that the enemy had begun removing their artillery.

Portsmouth Oracle, 19 February 1814 (vol. 25, no. 22) - Newspaper

Volumes of interest were published between 1812 and 1815 with articles about the War of 1812.

Columbian Centinel, 22 February 1815 (no. 3222) - Newspaper

Volumes of interest were published between 1812 and 1815 with articles about the War of 1812. Issue for February 22, 1815: includes various articles about the War of 1812 and the end of the war including "British official account--Battle of Chippewa", Page 2 has a bold, two-column wide heading: "Ratified TREATY Of PEACE And AMITY", followed by "A PROCLAMATION" issued by "JAMES MADISON" stating that a treaty with "His Britannic Majesty" was signed at Ghent on December 24, 1814, and ratified by the U.S. Senate on February 17, 1815, thus ending the War of 1812.

The Independent Chronicle, 22 October 1812 (no. 3280) - Newspaper

Volumes of interest were published between 1812 and 1815 with articles about the War of 1812. Issue for Oct. 22, 1812 includes a Proclamation issued by the President of the United States offering a full pardon to ...a number of individuals who have deserted from the Army... signed in type: James Madison. Has three other acts each signed in type by Madison. Some minor war reports on pg. 2.

The War, 22 August 1812 (vol.1, no. 9) - Newspaper

Volumes of interest were published between 1812 and 1815 with articles about the War of 1812.

The War, 21 November 1812 (vol. 1, no. 22) - Newspaper

Volumes of interest were published between 1812 and 1815 with articles about the War of 1812.

[British Parliamentary papers], Session 24 November, 1812 - 22 July, 1813. Vol. XIV, Correspondence and treaties with foreign powers.

Most of this volume consists of correspondence between high ranking U.S. and British statesmen. E.g., James Madison, James Monroe, The Marquess Wellesley (brother of Arthur Wellesley, Duke of Wellington). The discussion centers around the War of 1812. Also includes facsimilies of treaties signed between Great Britain and Sweden, Russia and Sicily.