INDEX.

Acfcynolite, small quantity of, found, andwhere, 210; varieties of, 211.

Aglianloo, County of Derry, 100, 104,108:coal at, 47.

Agriculture. Influence of physical featuresof the country, upon climate, and its im-portance to agriculturists, &Ci, 89, 649.statement on climate and drainage, 649—669. Injurious effects of absence of efficientdrainage, 652, 653, 655 : and advantagesof good drainage, 654, 656. Tables show-ing improvements made in certain estatesby drainage, fencing, liming, &c,, 657.Provisions in leases, and means of effect-ing improvements, 658, 660. Cost of im-provements, 655, 656, 657 : tables, 668,669. Effects of dampness of climate in re-gardto, 649, 652. State of agricultural po-pulation,653. Meansof improvement in*656. Numberaud extent of farms in Derry,and management of, in respect to drain-ing, 660. Statement on cultivation, 690*—709. General account of state of agri-cultural districts and population of thenorth, 690. Size of farms, 691. Sys-tem of cultivation by small farmers, 691.flotation of crops, 692. Tables of sizesof farms, 693 : of rotations of crops, 694;of proportions of crops, 696: of averagecost per acre of cultivation of the variouscrops, 698. Modes of improvement,&nd influence of the London companies inrespect to it, 699,708. Live stock, 699,

_ Manufacture of cheese, 700. As-Mcfotions in France for cheese-making,^1. Orchards,709. Agricultural schools,piper on the establishment of, 710. Ac-count of Templemoyle agricultural school,its management, rules, &c. 710. Hor-lcultural schools, desirableness of, 734.

Albite,

account of, and localities where

found, 212.

Altmover Glen, near Dungiven; descrip-tion of formations at, 576.

Alumina, sulphate of, state and localitiesin. which found, 213.

Aluminite, localities where found, 213.Amber, description of, and localities wherefound, 227.

Aualcime, varieties and description of, andlocalities where found, 220.

Ann&ghei Colliery: account of, 599 &t seq.Aunaghone coal pits, account of, 70, 629.Anthologia Hihernica, 1794, on geology of23 ;

Antrim, Rev. William Hamilton's Lefcfce?on the northern coast of, 30 : geologicadescription thereof, 32: extensive chalkylimestone range, 33. Rev. Dr. Richard*son on geological alterations in, 34—44*Rev. William Conybeare on diluvialaction in, 36, 40. Rev. W. Bukland’sobservations, 4U. Dr. Berger and Mr. Conybeare , on geology of, 50. Mr. Grif-fith’s survey of coal districts of, 59. Mr;Bryce on the north-eastern part of, 78;

Antrimolite, description of, and localitieswhere found, 218.

Apjolm, Dr. Observations and analysis ofmineral substance found at Tamlaght,115: comparison of this substance withbasalt, 117. Analysis of flint also found,117. Analysis of Drumrankin ochre,173, 174. Tables of weathet in variousyears in Dublin, contributed by, 665.

Apophyllite, description of, and localitieswhere found, 223.

Aqueous Agencies. Views of ancient au-thors on the action and changes of the sea,4. Supposed effects of diluvial action, anderroneous opinions thereon, 24—26, 37 ;as to origin of basaltic formations, 37—39,Supposed arguments in support of, 37,40. Examples of the action of the sea inthe wear of rocks, 95,102,103. Aqueousaction and subsidence as shown in land-slips, 103, 104, 109.

Arigna iron works, 72.

Armagh; unsuccessful sinking for coal atGorestown, 27. Dr. Berger and Mr;Conybeare on geology of, 50.

Arragonite, account of, and localities wherefound,213.

Artrea, greenstone dyke, 116, 741.

Asbestus, where found, 210.

Augite, description of, and localities wherefound, 210.

Authors on geology of the district. Reviewof the works of preceding writers, 22—82.Views of early writers on crustacea, 235<

•allintoy, limestone,lias, and chalk, &c., 33*34, 40, 41, 43, 54,56,58, 92, 93,< 99,100*102, et passim.

lallycastle, 80, 91, 92, 102: basalt andfragments of lava at, 28. Limestone for-mations at, 33, 34, 54. Collieries, Car-rick Mawr Dyke, 41, 54.lallycastle Orchard, shell bank at; theGiant’s Grave, 24.

3 D 2