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BIOLOGY.-PART I.

LABORATORY WORK.

The Board of Examiners.

1. Make preparations to illustrate fully the structure of the leaf provided. Sketch and briefly describe your preparations.

2. Make preparations of the cray-fish provided so as to show (a) the green gland; (b) the nervous system. Sketch and briefly describe your preparations.

Sketch

3. Make preparations to show the structure of the nervous system of the snail provided. and briefly describe your preparations.

BIOLOGY.-PART II.

FIRST PAPER.

The Board of Examiners.

All answers must be illustrated by rough sketches. All the questions must be attempted.

1. Write an account of the more important types of canal system amongst the Porifera.

2. Describe the chief groups into which the Radiolaria are divided, and the more important modifications in form met with amongst them.

3. Describe the structure and development of a Scyphomedusan, and point out the relationships of the Scyphomedusæ to (a) the Hydromedusa, and (b) the Anthozoa.

4. Give some account of, and compare the alternation of, sexual and asexual generations in Chara, Muscineæ, and Filicineæ.

BIOLOGY.-PART II.

SECOND PAPER.

The Board of Examiners.

All answers must be illustrated by rough sketches. FOUR questions must be answered, of which one at least must be chosen from questions 4 and 5.

1. Write an account of the more important variations in structure met with amongst the Cestoda, pointing out the relationship of these to the Trematoda.

2. Write an account of the structure of the ambulacral system in the Echinodermata.

3. Write an account of the various forms of excretory organs met with amongst the Arthropoda.

4. What are the probable methods by which nitrogen is assimilated by plants?

5. Give some account of the asexual generation in Selaginella.

BIOLOGY.-PART II.

LABORATORY WORK.

FIRST PAPER.

The Board of Examiners.

1. Dissect the animals labelled A and B so as to show as much as possible of their anatomy. Sketch your preparations and name the parts.

2. Identify and refer to their proper zoological positions the specimens labelled C, D, E, F, G, H. Sketch the specimens and briefly describe them.

BIOLOGY.-PART II.

LABORATORY WORK.

SECOND PAPER.

The Board of Examiners.

1. Dissect the Holothurian provided so as to show as much of its anatomy as possible. Sketch your preparations and briefly describe them.

2. Identify and make preparations to show the structure of the specimen labelled A. Sketch your

preparations and briefly describe them.

3. Identify, refer to their proper zoological positions, and briefly describe, with sketches, the specimens labelled B, C, D, E.

CHEMISTRY.-PART I.

SECOND PAPER.

The Board of Examiners.

N.B.-Candidates are instructed to show the full working of any question involving calculation, and to give equations for, as well as verbal descriptions of, chemical changes.

1. Give some account of the various modes of chemical change, and the conditions which modify it.

Exemplify your answer by reference to the following reactions :

Heat on Potassium Chlorate.

Mercury on Stannous Chloride.

Sulphuretted Hydrogen on Cadmium Chloride.
Dilute and strong Sulphuric Acid on Copper.

2. Give an account of the classification of the chemical elements.

3. Give a detailed description of the experiments by which the volume composition of steam is determined.

4. Describe the preparation of the following sub

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stances:

NH, PHs, C,HI, NHẠI, PHI.

Compare the two latter substances with ordinary metallic iodides, and give the evidence for and against the "Ammonium" theory.

5. Give the general characters of the homologous series of hydrocarbons having the general formula C2H2n+2, and shew how the higher members may be obtained from the lower.

Explain

(a) the existence of such a series,

(b) the existence of isomerism in its higher members.

6. Describe how, starting with an alcohol-e.g., ordinary or ethyl alcohol-you could obtain the corresponding ether, aldehyde and acid.

Describe the reactions which throw light on the molecular constitution of these four classes of compounds, and point out any analogies which may exist between them and any classes of inorganic compounds.

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