Imperial Actidemy of Sciences, Peterslurgh. 83 



2. That manv inoculators do not appear to have been 

 masters of what was investigated by others, or they had 

 not had sufficient experience to attain requisite skill. 



3. That a great proportion of asserted failures were mis- 

 taken, either in the patient's not having the cow-pock in 

 the first instance, or the small pox in the second. The re- 

 ])orter's confidence will not be at all shaken, until in his 

 own practice he is a witness to very different cases from 

 those he has hitherto seen ; or until professional men, with 

 equal opportunities and equal attention, have stated their 

 adverse evidence to the public. He is persuaded that the 

 subject of the vaccine disorder is now sufficiently investi- 

 gated for secure practice, and feels himself justifiable in 

 affirming, that in future the occurrence of the small pox after 

 vaccine inoculation will bk imputable to the inocct- 



LATOR BEING UNQUALIFIED, PROVIDED THE PATIENT BE 

 OBEDIENT TO HIS DIRECTIONS. 



It is ne<?t'ssary to notice, that the property of vaccine 

 matter in counteracting the agency of variolous matter 

 cannot be determined but by a number of trials in different 

 subjects, because either of the two morbific matters may 

 act merely locally, and in some cases may fail even to pro- 

 duce local effects. The reporter, as on former occasions, 

 is willing, at convenient opportunities, to repeat any of the 

 trials to prove the above results from evidence at the Insti- 

 tution. 



Note. — It is a reasonable inference, that if a person has 

 already received the small pox matter into the constitution 

 at the time of vaccine inoculation, there will be not only a 

 chance of the agencv of the vaccine matter, so as to antici- 

 pate that of the variolous altogether, but also of a coinci- 

 dent agency, by which the small pox will be mitigated. 

 Hence, persons who had been exposed to variolous effluvia 

 ought, of all others, to be inoculated with vaccine matter. 



I'. S. Having no doubt excited the most interesting cu- 

 riosity, and pel haps great doubts of the validity of the con- 

 clusions in the above ininutes, — if required by our readers, 

 we shall ask permission to illustrate them by examples in 

 practici , which are registered at the Inslilulion for insertion 

 m future numbers. 



IMPERIAL ACADEMY OF SCIENCES, PETERSBURGH. 



The minister of the Russian marine, vice-admiral 



Tchitchagoff, has sent to the academy a question on the 



F 3 resistance 



