Mac Cullagh 



Mac Culloch. 



golden number etc. (Phil.Tr. 1750). Thermo- 

 metrical observations (11). 1733j, — Machte 

 sich besonders um die 1752 dnicli^esetzte Kiii- 

 fiihrung des neuen Kalenders in England ver- 

 dient (siebe Hamburg. Magaz. VIU, S. 74). 



Mac C'üüagh, James. — Seit 18.35 

 Trot. (1 ;i!a!heniatik und seit 1843 Prof. d. 

 Physik am Triiiily College d. Univ. zu Duh- 

 !i;j, dem er seit 183 2 als Fellow ange- 

 hörte. Mitgl. d. Uoy. Irish Acad. seil 1830 

 (Phil. Mag. XXXII, i 8 iSJ (An. H. 1 8 47;, 



geb. 1^09, Loughhndhuluissy,* 



gest. 1847, Oct.24, DubMn.'* 

 On the double refraetion of liglit according lo 

 tlie principles of Fresnel (Tr. Roy. Irisb. Acad. 

 XVI, pt II, 1831). Gcometrical theorems on 

 the reclification of the conic sections (Ib. id.). 

 On a difticulty in the Iheory of tlie altracti'.ni 

 of spheroids (Ib. XVII, pt. II, 1837). (Jeome- 

 tiieal propositions applied lo llie wave theory 

 of light (II). id ). On the laws of the double re- 

 fraction of quartz (Ib. pt. 111). On the laws of 

 cristalline retlexion and refraction (Ib. XVIII, 

 pt. I, 1838). An ossay towards a dynamical 

 theory uf cristalline reile-xion and lelVaclion 

 (Ib. XXI, 1848). On the rolatiun of a solid 

 body round a tixed point (Ib. XX(J, pt. 1, 

 1855; — posthum). On the attraction of ellip - 

 soids with a new denionsLration of Clairault's 

 tbeoreni (Ib. pt. 11, 1835 ; posthum). 



• Grafschaft Tyrone, Irland. 

 ;*• gest. Oct. 28 {G. lS48). Nahm sich aus Molaiicholie 

 das Loben. 



Mao Cttiloch (M'Culloch), John. — 

 Dr. Med., erst Assisienzchirurg bei d. brilt. 

 Arlilleric, dann 18 03 Chemiker beim Board 

 of Ordnance (Arlilleriecollegium) und zu- 

 gleich pract. Arzt in d. Niihe von London 

 bis \8\ {, wo er mehre Jahre lang im Auf- 

 trage der Regierung geolo.L;. u. tnineralog. 

 Reisen in England unternalun ; 1 S20 Leib- 

 arzt des Prinzen Leopold von .Sachsen- 

 Coburg und später Prof. (L Chemie u. Geo- 

 logie an d. Mililärscliule d. ostind. Com- 

 pagnie zu Addisfombc (CL), 



geb. 1773, Oct. 6, Insel Guernsey, 

 gest. 1835, Aug. 2 1, Poldair bei Pcn- 

 zanre, Cornwali.* 

 Description of the Western Nlauds ofScolland, 

 2 vol. 8" u. Atlas, Lond.elE<iiiil). 1S10. A geolo- 

 giial Classification of rocks wilh descriplive 

 Synopsis, S", Lond.1821. The lligh-lands and 

 Western Isles of i^cotland, 4 vol. 8", Ib. 1824. 

 A System of goology with a theory of the earlh, 

 2 \()1 8°, Ib. 1831 . — Account ufG IS ernsey and 

 the other Channel Islands (Tr. Gcol. Soc. Lond. 

 L 181 1'. Oncertain prodncis ol)!aineil in thedi- 

 stiilationcfwoodefc. (Ib. II, LSI 4). On the gra- 

 ult lors of Coriiwall (Ib. id.). On lliC vÜrified 

 fortsof.S(."otland (ib. id.). Cii llie subliiuatioii of 

 silica (Ib. id ;. On llie jtinciion of Irap aad saad- 

 slone al .'^tirlioL: Caslie (Ib. id.). Hf-naiKs on 



several partsof Scotland, which e\hibit quartz 

 rocks, and on tlie nature and Constitution of 

 thls rock in general (Ib. id , l\', 1817 et .'^er. II, 

 T. I, pt I, 1822). On .Slaffa (Ib. 11, 1814). On 

 vegoiable remains preserved in chaicedony 

 (II). id. et IV, 1817J. Sketch of the minera- 

 logy of Sky (Ib. III, 181C et IV, 1817j. A geo- 

 log! doscript. ofGlenTiit ,Ib. III, 1 81 6 et Ser. II, 

 T. I, pt. I, 1822). Obss. on Ihe mountain Crua- 

 chani in Argvieshire etc. (Ib. IV, 1817). Obss. 

 on the hill of Kinnoul, I'erthshirc (Ib. id.). On 

 the parallel roads of Glen Roy (Ib. id.). On a 

 shifled vein occuiriiig fn üitieslone (Ib. id.). 

 On a peculiar dis|)osition ol I In- colouring mat- 

 lers in schistone rocks (Ib. id.). Ma^nesian li- 

 mestoue of Thessoion Island, Lake Huron (Ib. 

 Scr. II, T. I, pt. l, 1822). — On the granit of 

 Aberdeen.-Jhire etc. (Quart. Journ. of Science, 

 X, 1821). On the diallage rock ofShetland (Ib. 

 id.). On the forms of mine'ralogical hammers 

 (Ib. XI, 1821). On the potash to be oblained 

 from the slaiks of potatoes (Ib. id.). On pitch- 

 stone (Ib. XII, 1822). Od the Chart of Shet- 

 land (Ib. id.). On the desquamation of cerlain 

 rocks, and on its connexion with the concre- 

 tionary struclure (Ib. XIII, 1822). Conjectures 

 re^-pecting the greek (ire of ihe middle ages 

 (ib. XIV, 182.?;. On cerlain elevalions of land, 

 connected with the actions of volcanoes (Ib. 

 id ). On mineral veinsflb. XV. 1823). On ani- 

 inals preserved in amber, wilh remarks on 

 the nature and origin of that subsfance Ib. 

 XVI, 1823 . On an arenaceo-calcareous sub- 

 slance found near Delvine in l'erthshire (Ib. 

 id.). On the migrations of Ihe herring (Ib. id.). 

 On the concretionary and cryslalline structu- 

 res of rocks (Ib. XVIII, 182.). On Ihe origin, 

 materials, composition and analogies of rocks 

 fib XIX, 18-23). Onthcligniles (Ib. XX, 1826). 

 On a peculiar appearance exhibiled by hoar 

 frost (Ib. id.). General view of the origin, eba- 

 raclcrs and dis[)osition of unstralilied rocks 

 anii veins 'Ib. XXII, 1827). On Ihe geological 

 history and formation of coal (Ib. id.) — On 

 a (igured variety of coal (New Quart. Journ. 

 III, 1828). On Ihn annealing of the specula of 

 reflcctuig lelescopes (III id.). On the junction 

 of granite and sandslone in .'^utherland (Ib. IV, 

 1828). On classificalionsofrocks(lb. VI, 1829). 

 On a prismaticstructure in sandstouc, induced 

 by artificial heat IIb. id.). On the coaltield ot 

 .Siitherland (Ib. V!l, 18301. - On the colouring 

 of agates (Ldinh phil Jouin. I. 1819). On 

 peat (Ib. 11, 1820). On Ihc phosphorescencc 

 of marine aninials (Ib. V, 1821). On the con- 

 version of black-load into cast-irnn Ib. Vll. 

 1822). On the prcser\ation of fish by sugar 

 (lb.i<l.). Oll Ihe use of perfunies in preventing 

 mouldiness(lb. VllI, 1 s-i:.':. On Ihe limestoncof 

 Clunie in Perthshire (b'dinb. .lour n. ofScioncp, 

 1, 1824). On the soluliou of copper in arunio- 

 nia (Ib. id.). On a nielbod ofsplilling rocks 

 by fire (Ib 11, 1823). On Ihe distrd.ution of 

 cranilc and of trap in dilTereat parl.< of .Scot- 

 iand (Ib. id.). On a dt l.ichcd block of slone 

 atthesuniniilof a liill atDunkeldJb III, 1825). 



* gest. Aug-. 20 {G. 0) {A/:. i^". 1 s:i.-.). In Folge der .\ir.|Mi- 

 t.ition eines Bcinbiurha heim 8iuiv.'. a'is d'.-ni Wahren. 



