May. 1911. 



KNOWLEDGE. 



List of Animals sitfable for Skflktoxs. 



Raiia tcmponiria (frog) ... 

 Riifo vulgaris itoad) ... 

 Triton crisfatns (crested newt) ... 

 Laccrtti I'ifipcim (^'rass lizard) ... 

 Tropidonotiis iiatrix (common 



snake) ... 

 Sfiirniis vulgaris (starling) 

 Mits dccuinanns (rat) 

 Talpa ciiropca (mole) 

 Erinacfiis curopciis (hedgehog) ... 

 Canis faiuiliaris (dog) ... 

 Felis cioiiicsficus (cat) ... 

 Sciuriis vulgaris (sf|uirrel) 

 Ccrcopifhccus callitrichus (green 



monkey) 



Batrachian. 



do. 

 Tailed Batrachian. 

 Lacertilia. 



Ophidia. 

 .•\ves. 

 Rodentia. 

 Insectivora. 



do. 

 Carnivora. 



do. 

 Frugivora. 



Anthropoid monkeys. 



List of Books. 



Lessons in Elementarv .'\natoniy 

 Osteology of Mammalia 

 Comparative Anatomy 

 Practical Zoology ... 

 Manual of Zoology ... 

 Te.\t-book of Zoology 

 The Cambridge Natural History 



St. George Mivart. M.D. 



W. H. Flower. F.R.S. 



W'eidersheim. 



T. J. and \\'. N. Parker. 



H. A. Nicholson. 



T.J.Parker&W.Haswcll 



List of necessary Appar.vtu^ 

 AND Reagents, 



Fiddle drill and drills 



Dissecting forceps ... 



Fine forceps 



Double-spooned brain scoop 



Two needles in handles 



Dissecting scissors ... 



Fine-pointed scissors cur\cd on the flat . 



Two scalpels 



Glass jars 



Porcelain developing dish (] -plate) 



Glass covers... 



Glass dishes with covers ... 



Drying racks 



do. plate... 

 Watch glasses 

 Blackened glass 

 Zinc tanks ... 

 Hydrogen peroxide (20 Vols.) 

 Potassium hydroxide (sticks) 

 Methylated spirit 

 Carbolic acid (crystals) 

 Formaldehyde solution (40 %) 

 Canada balsam (in benzol) 



179 



Instri'ments 



3s. 6d. 

 U. 6d. 



''xl. 



yd. 



each. 



IS. 



Is. 

 3d. 

 Is. 

 Is. 



Is. 

 Id, 

 Is. 

 Id, 



rxl 



6d. 



fid. each. 



each . 



d. each, 

 each. 



and . 



to 2s 

 2d. each. 

 Is. 



Id. each. 

 4d. 



Qd. to 2s. each. 

 2d. per oz. 

 Is. per lb. 

 4d. per pint. 

 2d. per oz. 

 4d. per oz. 

 4d. per oz. 



SOLAR DLSTURBANCE.S DURING M.ARCH, 191 1. 

 By FRANK C. DENNETT. 



There was a slight increase of activity upon the Sun's 

 surface duriug March, and the repetition of outbreaks upon, or 

 close to, the site of pre\'ious disturbances was very marked. 

 The disc appeared free from disturbance on March 6th, 15th, 

 and 17th, and only faculae were observed on lith, I4th, ISth. 

 19th. 20th, 2Ist, 22nd, 26th, and 27th. The longitude of the 

 central meridian at noon on March 1st, was 237' 34'. 



No. 3 remaining visible until March 5th is shown on the 

 chart. 



No. 6. — A group of pores, a leader with some tiny com- 

 panions in front, with a larger pore bringing up the rear. 

 The group was 39,000 miles in length, and remained visible 

 from the 2nd until the 5th, and on the 7th two black pores 

 were seen close to the same place. 



No. 7. — .A pore amid faculic S(n'roundings only seen on 

 March 5th. 



No. 8. — A small spot came round the eastern limb, and 

 continued visible from the Sth until the I2th. 



No. 9. — .\ pair of pores about 37,000 miles apart, in a very 

 bright faculic disturbance, marking the site of No. 6, seen on 

 the 10th and 1 1th of March. 



No. 10. — .\ solitary pore seen only on the I6th. 



No. II. — .-Xnother single pore with faculae around it, seen 

 only on March 24th and 25th. 



No. 12. — After the disappearance of No. 5. The site was 

 marked by a fine faculic disturbance as it approached the 

 limb on the 9th and 10th. It was found on the 26th to have 

 come round the eastern limb, and on the 28th a group of four 

 black pores had made their appearance in the group. On the 

 3 1st there was a considerable spot as leader, and another as 

 trailer, with some pores between them. On April 1st, the 

 leader was preceded by a tiny pore, and the whole of the 

 group following the leader was made up of pores, the rear 

 ones partially outlining an ellipse. On the 4th there was seen 

 to be a black hydrogen flocculus close to a pore, east of the 

 leader, and the pore seemed to increase in size. When just 

 within the limb on the 6th, the leader, which alone remained 

 visible, appeared to be increasing in size. The leading spot 

 attained a diameter of 15.000 miles, and the group a length 

 of 83.000 miles. 



The chart is constructed from the combined observations of 

 Messrs. J. McHarg, A. \. Buss, E. E. Peacock and the writer. 



DAY OF .ALARCH. 



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260 270 280 290 300 310 320 J30 340 350 360 



