Show science and industry discussing abe long mooted asto the of the the london spectator expresses the opinion that all that can be said with certainty is that it sentient beings with corporal frames exist there the relations of abe lungs of the body cannot be identical with their relation in man which as is known in abe case of ie not an impossible exercise of abe imagination the argument is that though the thermal income of mars is less than half that of the earth and its theoretical mean temperature hakbin ino account its low reflective po unit of era is thirty deff centigrade below freezing yat the actual climate of mars is mild that enow melts rapidly is patent ta the Ulee cope that vapor hiees is clear from the spectrum analysis water bows sows and there are indications it not proofs that a sudden vegetation follows abe sudden of the enow what warms the air is unknown but that it is warmed admits ot no doubt but theories as to the inevitableness of cold in other worlds must be pronounced imperfect as also those which aar ane impossibility ul corporal life the public conservator ot forests in western australia J ednie brown mentions a karri tree in thai ardrion as attaining the height of leet beina feet to abe first limb the circumference at the base between 20 and 30 aset karri is remarked as harder and Jie avier than jarrad and is therefore for a certain class 01 ol work more durable and to be preferred but jarrah on abe other band is especially suitable for submarine structures euch as jetties and wharves on account of its resistance to th e ravages of the navales na valls or sea wonc for sleepers the upper portions of bridges and particularly road making for which latter purpose it is now being employed extensively in london and some other cities karri is regarded as invaluable the chief qualities ot karri and jarrah which have recommended them for toad paving are their remarkable toughness and durability aad in the opinion of authorities they are much to be preferred to soft wood or pine on sanitary sanit pry grounds being also nonabsorbent non absorbent and though the prime cost of pine is not to creat as karri or jarrah yet tb e life of these other timbers has been proved in city uee to be more than three timea that of soft wood owing to euch itei it is not required to creosote karri or jarrad railway sleepers nor do the chairs for the rails require broad a base as in the case of soft wood A ceries of geological lectures lately delivered in boston by mr grabau possessed abe special value ot throwing light according to abe most recent investigations upon the feature of consolidation which peculiarly characterizes the conglomerates in locae parts of new england which have long been abe subject of scientific baudy abil consolidation abe lecturer find to be due in many cases to the cementing together of band and pebble by abe carbonate of lime or oxide ol 01 lilae present in abe water a process even now going on in many places in the ee diment deposited at the mouth 0 rivers or on the where abe water contains an abundance of these materials of this formation are the pudding boonee and freestones free stones occupy important a place in modern construction their value for this purpose varying with their resistance to the action of abe atmosphere which depend upon abe nature ot the cementing principle holding abe mass together some of the pudding stones are so resistant to abe atmosphere that ages have not disintegrated them due to the presence pree ence ol 01 tel eite pebbles and a clay cementing ab betance the great necessity in laying theeo stones of observing their lines of bae only within a few eara been appreciated by builders an important point made by mr E A keefee in a paper lately read by him before abe royal society london is that tin curvee delineated on charts are in some cases misleading owing lo 10 the manner in which abe observations are plotted out thus observations for inclination of the magnetic needle are measured mea cured from the bior lion of the place the observer obi erver iny happen to bo at the time but the inclination would have another angle as regards any fixed line such as of any other latitude abe having thus no common baedor d anil thee fore not in that form to be pared j one with another the horizons theca selves from wh ch the anglee of tion ere measured mpa incline at an varying with the latitude ol 01 and hence before any satisfactory comparison ib possible their reduction to one standard is necessary ahat ie wanted ia a common line to which all observations for inclination should b referred and mr Ree veea opinion ie that the only line to adopt a the geographical axis of the earth another proposed wonder for the prospective parts exhibition of ipso ie a immense 1 ia ie said to beaw in course of construe alon and is to make the voice heard by persons this form of apparatus is claimed to especially favorable for the deaf and for alie eludy of the feeble sounds eiven out by the organs of the body in health anad ease magnifying the voice much as a lens magnifies objects to the eye register is a modified phonograph with a diaphragm vibrated by small electromagnets receiving cu irenta through a microphone the is somewhat similar with a microphone attached to the membrane the current for this being obtained from one to sixty battery cells and thence passing to a telephone the intensity depending upon the amount of current passing the instrument has a marked effect in stimulating the nerves and apparatus of hearing additional given from time to time in the pittsburg pa papers show that the well now being duk rear that city ie a remarkable undertaking from more than one point of view ment from these sources is that more than one mie in depth has already been reached and when finis bedi two miles down in the earth may be achieved this being done in the interest of science the undertaking having long bince been a commercial success even at a comparatively few feet below the surface both gae and oil were in paying quantities but the company owning the plant viewing the malter irom a more strictly standpoint into the hands of prof hallock of columbia college to arry on of temperature investigations as the boring ia carried down deeper and deeper the thus far is that the well browe steadily hatteras hot teras fn creases tiet down the temperature wa be 1209 degree s and at the bottom degrees the depth of he lae announced being feet benlon Men lon Ss a deep well near W va the temperature of which ia 51 degrees at the top andallo and llO degrees at the depth of feet in the salt well near berlin the temperature is about 47 degrees at the tap and degrees at the depth of fe and in the aalt ell near le ip sic the temperature ia about 51 degrees while at 57 io feet it runs up to 1255 degrees the results of professional etsey of the dangerous occupation or those give rise to nore orless serious disease show that almost every calling has bome ailment peculiar to itself and arisio fc from almont inevitable direct or remote it is found that badere owing lo 10 their irregular eife bleeping in the day and working highle and because of the hot air and lit often become victims to consumption blacksmiths though strong very often buffer from paralysis of the whole right side from the continuous shock of hammering and their eyes bacome from the glare of clift fire bricklayers and plasterers commonly enjoy fine health carpenters and cabinetmakers cabinet makers are liable to have varicose oae the lege and the action of the shoulder ro and may produce a diseased condition of the large artery that anna from the heart to the arm minera from working it the dark acquirer weak ayee and their lungs become quite black coopers have a lamp on the knee which however physician say ie really a little bog of fluid put ther by nature to protect the knee from the effects oi pressing against the barrel india rubber work era bad headaches nd mental de pree eion painters are liable to be poisoned by the lead they much and a tendency arises to weakness of especially the wrist mue clep |