Problem: CHAPTER XI.

AUNT CATHARINE'S HOME.

The lady sleeps--O may her sleep, As it is lasting, so be deep! Heaven have her in its sacred keep! This bed being changed for one more holy, This room for one more melancholy, Some tomb, that oft hath flung its black And wing-like panels fluttering back, Triumphant o'er the fluttering palls Of her grand family funerals. E. A. POE.

The summer was nearly over, when, one morning at breakfast, Louis surprised his father by a sound, half consternation, half amusement, and handed him a note, containing these words:--

'DEAR F.,--There were three of us last night; there are five this morning. Isabel and the twins are doing well. Heaven knows what is to become of us!

'Yours, J. F.'

'What would you have?' said Lord Ormersfield, calmly. 'The poorer people are, the more children they have!'

He went on with his own letters, while Louis laughed at the enunciation of this inverse ratio; and then took up the note again, to wonder at the tone of anxiety and distress, so unlike James. He went to call on Lady Conway, and was better satisfied to find that James had written in a lively strain to her, as if proud of his little daughters, and resolved not to be pitied. Of this he was in no danger from his sisters-in-law, who looked upon twin-girls as the only blessing needed to complete Isabel's felicity, had devised three dozen names for them, and longed to be invited to Northwold to see them.
1. What is the lady doing?
2. Does sleep have another meaning in this story?
3. what?
4. Who wrote a letter?
5. Whatdo poor people have more of?
6. What did Louis give hi sfather?
7. a sound what?
8. What did the note talk about?
9. Who was born?
10. who gave birth?
11. Were they healthy?
12. How many were there before the babies were born?
13. were the babies girls?
14. did they come up with any names?
15. how many?
16. where did they live?
17. Who wished to be invited?
18. What was Louis doing when he surprised his father?
19. what did Louis laugh at?
20. of what?
Answer: 1. sleeping
2. yes
3. Death
4. Lord Ormersfield,
5. children
6. a sound
7. half consternation
8. A birth
9. twins
10. Isabel
11. yes
12. three
13. twin-girls
14. Yes
15. three dozen
16. Northwold
17. Lord Ormersfield
18. eating breakfast
19. the enunciation
20. this inverse ratio;

Q: Lighting or illumination is the deliberate use of light to achieve a practical or aesthetic effect. Lighting includes the use of both artificial light sources like lamps and light fixtures, as well as natural illumination by capturing daylight. Daylighting (using windows, skylights, or light shelves) is sometimes used as the main source of light during daytime in buildings. This can save energy in place of using artificial lighting, which represents a major component of energy consumption in buildings. Proper lighting can enhance task performance, improve the appearance of an area, or have positive psychological effects on occupants.

Indoor lighting is usually accomplished using light fixtures, and is a key part of interior design. Lighting can also be an intrinsic component of landscape projects.

Forms of lighting include alcove lighting, which like most other uplighting is indirect. This is often done with fluorescent lighting (first available at the 1939 World's Fair) or rope light, occasionally with neon lighting, and recently with LED strip lighting. It is a form of backlighting.

Answer the following questions:
1. what is indoor lighing usually accomplished with?
2. are these purely functional?
3. what part do they play in it?
4. can it be used outdoors?
A: 1. using light fixtures
2. no
3. unknown
4. yes

Problem: Cartilage is a resilient and smooth elastic tissue, rubber-like padding that covers and protects the ends of long bones at the joints, and is a structural component of the rib cage, the ear, the nose, the bronchial tubes, the intervertebral discs, and many other body components. It is not as hard and rigid as bone, but it is much stiffer and much less flexible than muscle.

Because of its rigidity, cartilage often serves the purpose of holding tubes open in the body. Examples include the rings of the trachea, such as the cricoid cartilage and carina.

Cartilage is composed of specialized cells called chondrocytes that produce a large amount of collagenous extracellular matrix, abundant ground substance that is rich in proteoglycan and elastin fibers. Cartilage is classified in three types, "elastic cartilage", "hyaline cartilage" and "fibrocartilage", which differ in relative amounts of collagen and proteoglycan.

Cartilage does not contain blood vessels (it is avascular) or nerves (it is aneural). Nutrition is supplied to the chondrocytes by diffusion. The compression of the articular cartilage or flexion of the elastic cartilage generates fluid flow, which assists diffusion of nutrients to the chondrocytes. Compared to other connective tissues, cartilage has a very slow turnover of its extracellular matrix and does not repair. In embryogenesis, the skeletal system is derived from the mesoderm germ layer. Chondrification (also known as chondrogenesis) is the process by which cartilage is formed from condensed mesenchyme tissue, which differentiates into chondroblasts and begins secreting the molecules (aggrecan and collagen type II) that form the extracellular matrix.
1. What substance can cartilage be compared to?
2. Is it flexible or rigid?
3. Where is cartilage located in the body?
4. Anywhere else?
5. What is cartilage like compared to muscle?
6. What kinds of cells is cartilage made up of?
7. What are they called?
8. What do they produce?
9. How many types of cartilage are there?
10. How do they differ?
11. How do cartilage cells get nutrition?
12. How often does cartilage repair itself?
13. Does cartilage have blood vessels?
Answer:
1. other connective tissues
2. flexibl
3. , the ear,
4. the rib cage
5. stiffer
6. specialized cells
7. chondrocytes
8. matrix
9. three
10. in relative amounts of collagen and proteoglycan
11. diffusion
12. never
13. no