Show wT C R. R F I YIELD O OF IN INVENTION I t AND DISCOVERIES OF P VALUE t. t 1 Ama Ama- Amateur Portable o l Dark ark Room Will PI Please as Amateur Ama Ama- m r Tree Photographers hot Tree V Ing Screen Screen Will Make Easy J i t The had the tricycle le then then the the th r bicycle now it is the The 11 two first named were propelled by the W i feet of course course but the last is intended intend- intend ed oed to be worn on the foot and has rl 1 just been invented by by a Western man It loo looks s like an ordinary roller to skate at a casual glance but more more careful examination will show that that instead in in- stead of the skater being compelled to exert esert considerable muscular effort to prop propel i himself along he has simply 1 to lift his fo foot t and then replace it Won on X Yv f i 7 ti r Downward pressure revolves the k wheels 1 the ground again with a sufficient s portion of ot his weight to start the machinery mar map ma ma- 1 r p chinery chin ry which drives him along With 0 the miles and miles of asphalt pavement pavement pave- pave ment to lie Ite found in nearly all the large arge cities there is a field for a cycle of this class aside from the pleasure it will wilf afford the small boy and there is no reason leason why the class of of individuals who recently used the bicycle as a means of locomotion should not take up with this new pe- pe It will be Se seen n that the foot footplate footplate plate is elevated from the skate frame by s suspension on sliding pins with s springs spring's to spread the plate apart from the frame as long as no pl pressure is As applied to the former But as soon as weight is applied is-applied applied d the plate D begins to sink k actuating the rod connected connected to the segment segment gear This gear is 13 conne connected ted with a ratchet wheel and this wheel t to a third mounted on n the which shaft which carries the rear wheel of f. f the skate It is obvious that the pressure of the body's weight weighton on the loot plate will transmit the force I through the gears to the rear wheel t acting on the pavement to propel the ins skater who has only to alternately lift tift and d depress press his feet to go skim skim- wing ming along the street with with considerable consider fi able speed The ratchet arrangement 1 permits the propulsion belIg limited being l p to any amount desired thus regul regulating at ing ng t tHe e speed which ich is further conn con con- n trolled by the braking device d v ee ce as 4 shown 7 i John I D. D Schmidt of f rt la in UP is the Inventor cs I F- F English Portable Dark RO Room I 1 Every photographer will b be Interested Interest interest- stI st- st I f i ed In the inthe the portable d chamber f for r manipulating plates plate j has r recently been i I. I by byan an En Eng 7 lish Kish inventor It is of f. f course intended in int tended largely tended largely r elY for tl the e amateur amateur j itie t p i r. r fi Sf H Has Has 11 ded y 1 professional 1 rore to ll ls ts j generally e p Pt y AI with a large roo room lly fitted up up for tor t t i do of bf th the rk lr ro those who Ore are to provid themselves with With f the regu on on dark 09 t lack ot- ot f- f space space this Idea i prove Yie of at of f it a ea especially i lY iJ r 4 t 4 ov j A i 1 tr portable dark room where plate holders hold hold- ers erg can be refilled and the exposed negatives packed for shipment is not entirely new but the inventor of this outfit goes a step furth further r and adds adds a developing apparatus which is novel and h l' l specially G-specially advantageous g s f t ho class of work the r. r Chas been Elen designed for tor The trouble w th devel devel- developing der developing l. l exposures In a portable dark darkroom darkroom darkroom room has been the difficulty of ot of e exam in Ining fining the negative from time to timeto timeto time timeto to stop the developing process process at just the proper r moment ment This Is Is' Is overcome overcome over over- come in in- inthe the apparatus here shown by placing a reflecting mirror beneath the box which throws light through a colored screen in the bott bottom m of ot the thed d developing tray and the latter being of transparent material it is easy to watch the process of development and che check it at the right time The The apparatus Includes of course developing developing developing devel devel- and fixing baths with shelves for storage of chemicals and provision provis provIs- ion is also made for a stream of water for rinsing the negatives I The inventor is Joseph Lambert of So Southport England I Tree F Fumigating Screen I Farming a cent century ry ago consisted I principally of planting the seed ke keeping keeping keep keep- p- p I ing out the weeds and waiting wafting for the harvest with little or no conception I Adjustable tent to the shrub of the chemical processes through II which the soil induced the plant growth and consequently no knowledge knowledge knowl knowl- edge of how the plant growth could i ibe be forced by the the addition to the the soil of th the chemical constituents which h i were lacki lacking g Likewise the apples i and small fruits were looked upon as asa asa asa a side Issue which must be left largely to chance in producing profitable profitable pro pro- profitable crops Gradually however a B. change has come about until now the farmer performs his labor as a scientist with the aid of the agricultural agricultural tural college and Government and nd State experiment station and agricultural agricultural agri cultural institutes With this knowledge knowledge knowl knowl- edge has come the necessity of better appliances for inducing healthy plant plan growths growths growths and and gu guarding against die dla- eases both in fruits A It century ago the the Idea of of of- smudging Vi ei tree to rid it of insects or worms worms' might have be been n scoffed d at but nov the need need- for an an apparatus like th the onO one w we illustrate can can lit be easily compre e ded he e lil like device is in intE intended intended in- in tE tended to to se completely trees of 01 ci considerable hj sIz size and is constructed of f a series pJ of of overlapping ping section which can be be placed in position while whilo folded fold d and imd f fall Il down all the tr e tl lowest the section sec see ti tion n r reaches ache the g ground With With th the tree e thus d it t is an easy mat atter at- at J ter ter to build fire inside inside- the inside the tent and apply which chemicals them will fum- fum the f foliage I Bg tor rid the limbs and tru Ili of any f growths detri detri- if n alt its to-its health lt William Wllliam H. H of Monrovia C Cal Calis l. l the patentee tenie J i Mexico's Mineral r l Resources V Vast Vant t sums of c capital pit f are being rapIdly rapidly rapidly rap rap- Idly idly drawn from the United States for investment nt and and development d vel pD ent of the mining g resources resOurce resources of Mexico Old min miners are being reopened In in condition onci for for producing In at t a r remarkable remarkable remark remark- mai able rate and and the American American- prospector prospector prospector tor tor torIs is p penetrating penetrating every every corner Inse in se search oil of of n new new w disc discoveries v Everything v se D says says- Mining World for tor a great revival in mining mining tn in all it mineral ral states tateS' of of tb f V f t i |