"By adopting the following arrangement, this process may be used largely to increase the power and speed of reproduction with little loss of effect. From a positive thus obtained, say on collodion, _several hundred_ negatives may be produced either on paper or on albumenised glass. If on the latter, and the dimension of the original negative is preserved, the loss in minuteness of detail and harmony is almost imperceptible, and even when considerably enlarged, is so trifling as in the majority of cases to prove no objection in comparison with the advantage gained in size, while in not a few cases, as already stated, the picture actually gains by an augmentation of size. Thus, by the simultaneous action, if necessary, of some hundreds of negatives, many thousand impressions of the same picture may be produced in the course of a day. "I cannot but think, therefore, that this simple but ingenious discovery will prove a valuable addition to our stock of photographic manipulatory processes. It happily turns to account and utilises one of the chief excellencies of collodion--that extreme minuteness of detail which from its excess becomes almost a defect at times,--toning it down by increase of size till the harshness is much diminished, and landscapes, always more or less unpleasing on collodion from that cause, are rendered somewhat less dry and crude. "A very little practice will suffice to show the operator the quality of glass negatives--I mean as to vigour and development--best adapted for reproducing positives by this method. He will also find that a great power of correction is obtained, by which overdone parts in the negative can be reduced and others brought up. Indeed, in consequence of this and other advantages, I have little doubt that this process will be very generally adopted in portrait taking. "Should your old idea of preserving public records in a concentrated form on microscopic negatives ever be adopted, the immediate positive reproduction on an enlarged readable scale, without the possibility of injury to the plate, will be of service. "I am, &c. "JOHN STEWART." * * * * * Replies to Minor Queries. _The Ring Finger_ (Vol. vii., p. 601.).--The Greek Church directs that the ring be put on the right hand (Schmid, _Liturgik_, iii. 352.: Nassau, 1842); and although the direction of the Sarum _Manual_ is by no means clear (see Palmer's _Origines Liturgicae_, ii. 213., ed. 2.), such may have formerly been the practice in England, since Rastell, in his counter-challenge to Bishop Jewel, notes it as novelty of the Reformation,-- "That the man should put the wedding-ring on the fourth finger in the left hand of the woman, and not on the right hand, as hath been many hundreds of years continued."--Heylyn, _Hist. Ref._, ii. 430. 8vo. ed.