The brain of the Tammar wallaby (Macropus eugenii) in stereotaxic coordinates

This pdf contains an atlas of the brain of the adult wallaby (Macropus eugenii), comprising images of coronal sections and matching drawings in stereotaxic coordinates with structures identified. It extends from Bregma +27mm to Bregma -21mm. It includes the methodology used and an overview of the anatomical organisation of the wallaby brain

The Tactical Myth of Palestinian Identity

Following the rise of the arch-terrorist Yasser Arafat to the leadership of the Palestine Liberation Organisation in 1969, there was a push to convince the world that Palestinians are a unique people of Arab origin who had inhabited the lands of Israel for thousands of years. The uninformed and gullible believed it, and leftists still promote it

The Inexorable Expansion of the Welfare Class

In one of his more imaginative moments, the German poet Heinrich Heine wrote, "Poverty sits by the cradle of all our great men and rocks them up to manhood." Despite its hyperbole this idea had great appeal to many social commentators and writers in the nineteenth century. The individual who lifted himself out of poverty and overcame his disadvantages through determination and strength of character became an archetype of Western culture, the stuff of fairy tales, novels and political essays

Nazi Eugenics and Euthanasia - and Their Return

The Concise Oxford Dictionary defines euthanasia as bringing about "a gentle and easy death"; and eugenics as "the production of fine offspring by improvement of inherited qualities". Although the two issues are separate, they often go together in practice, the most notorious example being Nazi Germany

Kitto, Sir Frank Walters (1903-1994)

This item was commisioned by Australian Dictionary of Biograph

Distribution of retinogeniculate cells in the tammar wallaby in relation to decussation at the optic chiasm

Partial decussation of the optic nerve in mammals is related to the laterofrontal placement of the eyes. To investigate this relationship in the wallaby (Macropus eugenii), injections of wheat germ agglutinin-conjugated to horseradish peroxidase were made into one dorsal lateral geniculate nucleus to label retinal ganglion cell bodies in both retinas. Contralaterally, labelled ganglion cells were present across the nasotemporal axis, except for the far temporal retina where they were absent or very sparsely scattered compared with the density of labelled cells at similar nasal eccentricities in the same retinas. Ipsilaterally, labelling was confined to the temporal retina. Cell counts confirmed a visual streak and an area centralis in the contralateral projection. Diameters of labelled cells ranged from 9 μm to 30 μm with a hint of three categories of cells based on size. Only the large α-type cells were; easily separated. Measurement of the acceptance angles of the eye in the anaesthetised animal showed about 15% of the horizontal visual field of each eye projects into a region of binocular overlap giving a binocular field of 50°. The uniocular visual field extends from -25°(nasally) to + 162°(temporally) in azimuth, giving the wallaby a monocular visual field width of 187°and a total visual field width of 324°. In elevation, field ranges from 70°inferior to +120°superior, encompassing 190°in the vertical plane. The wallaby shows partial decussation of optic nerve fibres projecting to the lateral geniculate nucleus that could allow stereopsis, plus an extensive panoramic field