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on; Europe has had time to negotiate, to arm,

 and tointerfere; but she has satisfied herself with sighs and braves, and with empty hopes and shallow premises. But if Poland shall

 become indeed victim, and Warsaw shall

 be redIced to ashes, the public indignation of

 Francdwill be evinced by more than words or petitions; and if the Government will not then nhrch with the people, the people will march, hwithout the Government Each cou- rier frdn Warsaw will now be looked for not

 with hfpc but horror; and popular indigna

 tion WI burst all bounds, and sweep all be-

 fore it. If the French Government shall suf

 fer theextermination of the kingdom of Po-

 land. Your obedent servant, o. P. Q.

 Fep9;-At season of the year when the

 fever fculiar to warm climates may be ex- pected to prevail in a greater or less degree,

 We have thought the following remarks on Dr St@en's "Observations on the blood," copied from late number of the London

 New Monthly Magazine, would prove nte- resting 10 the Faculty, as well as to our req ders geierally haher.

 At meeting of the College of Physicians, a papei was lately read, entitled "Observa- tions of the Blood," by Dr Stevens. The object d the author is to prove that the proxi-

 mate cause of yellow fever was to be found in the changes which the blood undergoes, and that the true remedy for this and other levers consists in opposing by proper means those changes. For the advantage of the unscien-

 fihc reader, it Is perhaps necessary to state,

 tht, until very recent period the or

 ganc lesions capable of producing death ill

 levers were supposed to be confined exclu- | sively to the solids of the body, or, in other

 wofds, that the fluids, in which the course oft,e blood is included, had no share whate- veisin the production of fatal termination.

 his theory had many opponents, but it ne Nerthelo,e generally prevailed, until the in

 geniqs Dr Clanny, of Sunderland, submitted

 1t to the test of direct experiment. This

 physician had an apparatus, constructed at great expense, for the purpose of investigat-

 ing this important subject. The result of

 hs experiments was some time since made

 known in his lecture on typhus fever Dr | Clanny proved that the changes which the

 blood undergoes are incontestible, and that 1 the violence of symptoms, and the certainty l ot death, are strictly relative to the rapiditv | and extent of those changes A confirmation

 of Dr Clanny's discovery is now brought fer

 ward from distant part of the world by Dr Stevens, gentleman who practiscs in one of the West India Islands. These gentle men differ in their theories of the changes which the blood undergocs, but they agree as to the fact that such change takes place.

 The practice which they have adopted to prevent their recurrence is the same, and is attended with the same extraordinary suc- cess. Dr Clanny is enabled, in all cases of typhus fever where care is taken to protect the system from the pernicious effects of car ly excitement, to lead the symptoms, as it at n apJ fn

 imitation. Similar means produce the same result in the African typhus and yellow fever.

 ''On opening the heart," says Dr Stevens, ''we find, instead of blood, dissolved fluid, nearly as thin as water, and almost as black as ink. In both the cavities of the heart the fluid IS equally black, and in the whole vas- cuar system all distinction between arterial and venus blood is entirely lost. In this state it isqnte evident that the blood is inca pablo of stimulating the heart, or supporting life." h the progress of the fever, the changes d the blood succeed each other in the following order: 1st. The blood loses it's solid part,, and becomes thin; 2d. It loses it's saline principle, and becomes black and va pd; Sd. It's preservative clements are now dissipated, and it goes fast to decay, the more rapidly, says Dr Clanny, as no new blood can now be fdmed; 4th. It loses its vitality, and IS incapable of supporting life. Whatever may be said as respects mere theory, the ob- scryations of Drs Clanny and Stevens must be highlygratifying to the profession. Their discoveries will change all the received opi- nions on ihe nature and treatment of levers. Their success in the treatment of those de- structive diseases is altogether unprecedented in the history of the healing art. The cura- tive method applied by them to our typhus fever or to the yellow fever, is equally suc- cessful. There are no deaths when the treat mentis resorted to in the early stages of these levers. It consists in allaying the excitement, if any exist, during the first twenty -four hours, by venesection, mild pergatives, ,and spong- ing the bqdy with cold water; the saline me- dicines which are considered the best agents for preventingthe decomposition of the blood, are then lexhibited in small and repeated doses Those usually preferred are the Ro- chelle salt, and the carbonate of soda, potash and amonia, Slc. This practice was tried in the hospital at Trinidad n1828, season pc culiarly sickly in that island. It was applied in three hundred and forty cases, including the remittmg and yellow levers, admitted in- to the hospital, after the symptoms had ex- isted varicusly from six to seventy-two hours, with such sbccess that not single case prov cd fatal. Dr Stevens says it can be clearly proved, in the West India fever, those pa tients that are left to nature have better chance eff recovery than those who are treat ed with emetics, calomel, or antimony, opi- um, or acids; and that these remedies dccid- edly increase the very evils they are meant to relieve, and add greatly to the mortality of fever in hot climates. Dr Clanny maintains v,st,t,x tO fhasr aHo in ha