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hydrocarbons,'and also coal tat, which, on subsenuent fractional distillations, yields many `liquid and C,H5N2Cl + K2SO, = KCI + C,H,N2•SO3K, C6H5N•>•SO3K + 2H = C,H,•NH•NH•SO3K,C5H,N H • NH • SOsK+HCI + See also:

H2O (combined)

H2O = See also:

C6H,• NH • N H2' FICI + KHSO1. Phenylhydrazine is a colourless oily liquid which`rturtis See also:

brown on exposure. It boils at 241 ° C., and melts at 17.5° C. It is slightly soluble in See also:

WATER

water, and is strongly basic, forming well-defined salts with r u acids. uch for For ethe detection of xample as See also:

ALDEHYDES

aldehydes and See also:

KETONES

ketones) hc d az See also:

lie orbital plates of the frontal See also:

bone being inclined forwards give a ~ very important reagent, since See also:

des it combines? with enthlhem with a downward' tilt to the eyes, which have also See also:

PECULIAR

peculiar See also:

ROLLING

rolling elimination of water and the formation of well-defined hydrazones movements. The See also:

FACE (from Lat. fades, derived either from facere, to make, or from a root fa-, meaning " appear "; cf. Gr. cbatvstv)

face is small, and this, with the enlarged See also:

head, gives 'a remarkable aged expression to the See also:

child. The See also:

BODY

body is See also:

ill-noilrished,, the bones are thin, the See also:

HAIR (a word common to Teutonic languages)

hair is scanty and See also:

FINE

fine and the See also:

TEETH (O.E. Eel); plural of tooth, O.E. top)

teeth" carious or absent. The See also:

AVERAGE

average circumference of the adult head'is 22 in., and in the normal child it is of course much less. In chronic hydrocephalus the had of an See also:

INFANT (in early forms enfaunt, enfant, through the Fr. enfant, from Lat. infans, in, not, and fans, the present participle of fari, to speak)

infant three months old has measured 29 in.; and in the See also:

case of the See also:

man See also:

CARDINAL (Lat. cardinalis)

Cardinal, who died` in See also:

GUY, THOMAS (1644–1724)

Guy's See also:

HOSPITAL (Lat. haspitalis, the adjective of hospes, host or guest)

Hospital;' the head 'Measured 33 in.

In such cases the head cannbt be' supported by the See also:

NECK (O. Eng. hnecca; the word appears in many Teutonic languages; cf. Dutch ride, Ger. Nacken; in O. E. the common word was heals; cf. Ger. Hals)

neck, and the patient has to keep mostly in the recumbent posture. The expansibility of the See also:

SKULL

skull prevents destructive pressure on the See also:

BRAIN (A.S. braegen)

brain, yet this See also:

ORGAN

organ is materially affected by the presence of the fluid. The cerebral ventricles are distended, and the convolutions are flattened. Occasionally the fluid escapes into the cavity of the cranium, which it fills, pressing down the brain to the See also:

BASE

base of the skull. - As i. consequence, the functions of the brain are interfered with, and the See also:

MENTAL

mental See also:

CONDITION (Lat. condicio, from condicere, to agree upon, arrange; not connected with conditio, from condere, conditum, to put together)

condition is impaired. The child is dull, listless and irritable, and sometimes See also:

IMBECILE (through the French from Lat. imbecillus or imbecillis, weak, feeble; of unknown origin)

imbecile. The See also:

SPECIAL

special senses become affected as the disease advances; sight is often lost, as is also See also:

HEARING (formed from the verb " to hear," O. Eng. hyran, heron, &c., a common Teutonic verb; cf. Ger. Koren, Dutch hooren, &c.; the O. Tent. form is seen in Goth. hausjan; the initial h makes any connexion with " ear," Lat. audire, or Gr. &Kobew very doub

hearing. Hydrocephalic See also:

CHILDREN, LAW RELATING TO

children generally sink in a few years; nevertheless there have been instances of persons with this disease living to old See also:

AGE (Fr. age, through late Lat. aetaticum, from aetas)

age. There are, of course, grades of the See also:

AFFECTION (Lat. ad, and facere, to do something to, sc. a person)

affection; and children may See also:

PRESENT

present many of the symptoms of it in "a slight degree, and yet recover, the head ceasing to expand, and 'becoming in due coirtse'firmly ossified. Various methods of treatment have been employed, but the results are unsatisfactory. See also:

COMPRESSION

Compression of the head by bandages, and the See also:

ADMINISTRATION (Lat. administrare, to serve)

administration of See also:

mercury with the view of promoting absorption of the fluid, are now little resorted to. Tapping the fluid from See also:

time to time through one of the spaces between the bones, See also:

DRAWING

drawing off a little, and thereafter employing See also:

GENTLE (through the Fr. gentil, from Lat. gentilis, belonging to the same gens, or family)

gentle pressure, has been tried, but rarely with benefit.

Attempts have also been made to establish a permanent drainage between the interior of the lateral ventricle and the sub-dural space, itnd between the lumbar region of the spine and the See also:

ABDOMEN (a Latin word, either from abdere, to hide, or from a form adipomen, from adeps, fat)

abdomen, but without satisfactory results. On the whole, the See also:

plan of treatment which aims at maintaining the patient's See also:

NUTRITION

nutrition by appropriate See also:

food and tonics is the most rational and successful. (E.

End of Article: HYDROCARBON

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