6. =Système solaire d'après la marche réelle du Soleil.= _E. G. Fahrner._ Paris 2^{me} éd. 1869. 7. =Das wahre Sonnensystem.= Bewegung und Bahnen der Gestirne nach einer neuen Auffassung über dieselben im Himmelsraume, und zwar welche nicht in Ellipsen statt hat. _James Hermann Milberg._ München 1862. 8. =Die wahre Gestalt der Planeten- und Kometenbahnen.= _Friedrick Carl Gustav Stieber._ Dresden 1864. 9. =Die Sonne bewegt sich.= Folgerungen aus dieser Lehre in Bezug auf die Fixsterne und Planeten. _C. R.(ohrbach)._ Berlin 1852. 10. =Ueber Veranschaulichungsmittel für mathematische Geographie.= Erläuternde Beigabe zu neu construirten Veranschaulichungsapparaten für Volksschulen und höhere Unterrichtsanstalten. _F. A. Püschmann_, Seminaroberlehrer, Grimma. 11. =Der Himmels-Mechanik gänzliche Reform auf Grund der inductiven Logik= mit der strengberechtigten philosophischen und mathematischen Nachweisung. _V. P. Kluk-Kluczycky._ 1880. G. KREYSING, LEIPZIG. [Illustration] FOOTNOTES: [1] Moreover, other, smaller detached observatories, might be erected on the east and west coasts of America and Africa, on the islands of Sumatra, Borneo, Celebes and Gilolo, on one of the islands of Gilbert's archipelago and upon one of the Gallopagos islands, if it be considered worth the effort to acquire some real knowledge as to the movement in space of the leader of our planetary system and the bodies pertaining to it. [2] Inertia is the most simple and most natural (sic) law of nature which can be imagined. Laplace I p. 4. [ The following is a list of changes made to the original. The first line is the original line, the second the changed one. Copernicus makes the sun _to be motienless_, Copernicus makes the sun _to be motionless_, mauner as is indicated in the system of manner as is indicated in the system of ideas being at hand which seemed be to better, ideas being at hand which seemed to be better, power. If may be said that astronomy has power. It may be said that astronomy has upon to sludy _seriously_ the phenomena of upon to study _seriously_ the phenomena of for the whole earth, which, founded of the for the whole earth, which, founded on the and the subdivision of the work amangst the and the subdivision of the work amongst the If the imaginary is prefered to reality, we If the imaginary is preferred to reality, we Celebes and Gilolo, on one of the islands ol Gilbert's Celebes and Gilolo, on one of the islands of Gilbert's or rather to graph propery and to explain or rather to grasp properly and to explain ]